Graphene and 2D materials, despite being relatively fresh materials, have already taken a firm place in research, development and applications. A number of exciting phenomena have been discovered in these crystals and they continue bringing exciting results on a regular basis. However, probably the most important characteristic about 2D materials is that they offer a possibility to form...
This talk explores the role that materials and advanced manufacturing can play in African development. Following a brief historical perspective of the importance of materials and manufacturing research and education in sustainable development, the talk presents examples of how to leverage Africa’s materials and energy resources in the sustainable development of Africa. In the first set of...
The provision of clean sustainable energy is among the most urgent challenges to society and the global economy and poses fundamental, exciting scientific questions. Materials performance lies at the heart of the development and optimization of green energy technologies, and major breakthroughs require advances in new materials and underpinning science. Achieving the required performance gains...
In this presentation, I will delve into the exciting realm of monolithic 3D integration, where emerging 2D FETs take center stage, empowering advanced memory, and logic devices. Notably, our recent breakthroughs have culminated in the successful demonstration of wafer-scale 2-tier and 3-tier 3D integration, utilizing MoS2 and WSe2 FETs as the building blocks. These achievements have paved the...
The surfaces of materials and nanomaterials are the place of their reactivity and govern their interactions with the surrounding environment. Whether they are flat surfaces or plasmonic nanostructures, these (nano)materials are at the very core of diverse applications such as diagnosis, sensing, drug delivery and antifouling.
The input of surface chemistry to the ultimate success of these...
Environmental contamination from anthropogenic activities is often defined by the presence of either legacy or emerging contaminants. Hazardous waste sites associated with legacy contaminants were the focus of environmental remediation activities in the twentieth century. Now, "emerging contaminants" have captured the focus of the environmental community. However, the distinction between...
The UNESCO Chair in Materials and Technologies for Energy Conversion, Saving, and Storage (MATECSS) at the Institut National de la Recherche Scientifique (INRS), Canada, focuses on addressing global challenges related to sustainable energy. Established in collaboration with UNESCO, this chair is dedicated to advancing research and innovation in energy materials and technologies that are...
Introducing alkali metal atoms between the carbon layers of graphite to form graphite intercalation compounds (GICs), can tune the interlayer spacing and charge the graphite host through a variety of electronic ground states. Hexagonal boron nitride (hBN) is another prototypical layered material and possesses a hexagonal network consisting of B and N atoms. Because of its structural similarity...
Imaging is a fundamental tool in the practice of medicine. In parallel with the development of improved imaging systems and techniques, there are numerous new contrast agents under assessment for concurrent cancer therapy and diagnostics, or ‘theranostics.’ In this emerging field, materials scientists are leading the design of new colloidal materials that can be both tracked and capable of...
There is an increasing awareness of the necessity to protect the environment and the need to find innovative solutions to replace or remove different industrial pollutants present in wastewater, complementing the existing physical, chemical and biological techniques used for wastewater treatment. Recently, piezoelectric nanomaterials have been used as catalysts for water purification,...
Keywords: Photovoltaics, sustainability, perovskites, circular economy.
Theme: Energy Materials
Perovskite solar cells (PSCs) are a promising emerging technology on the cusp of commercialisation. With record power conversion efficiencies >26%, they are excellent candidates for low-cost and low-embodied energy photovoltaics. Their emergence as a promising technology is timely as we are on...
The UNESCO Chair Aid4GEA on Technologies and Materials for Green and Energy Applications has just been established at the Ca’ Foscari University of Venice, Italy, and at the Luleå University of Technology, Sweden. It aims to strengthen awareness of the key role of advanced materials and technologies to promote sustainable development, especially in developing countries. Materials and...
The dynamics of infectious disease (ID) require fast accurate diagnosis for effective management and treatment. In low and middle income countries (LMICs). syndromic or presumptive actions are followed, where positive cases may go undetected in the community, or mistreated due to wrong diagnosis. Without affordable, accessible diagnostics, this undermines effective clinical decision-making and...
Composite nanostructures can be efficiently applied for Sunlight conversion and, more in general, for energy harvesting and generation of solar fuels. In most of the applied systems, like photodetectors, excitonic solar cells, and (photo)-electrochemical cells to produce solar fuels, nanomaterials can play a critical role in boosting photoconversion efficiency by ameliorating the processes of...
In this talk, we review our research on the development of next-generation nanofiltration membranes [1] and sorbents [2] for water purification based on few-layer graphene. As far as nanofiltration is concerned, we present a fabrication process in which sonochemically exfoliated few-layer graphene flakes are utilized to fabricate a continuous membrane, in which leaks between juxtaposed flakes...
The formulation of quantum mechanics in the late 1920s forever changed physics. More recently, quantum materials have emerged, presenting fascinating opportunities in condensed matter physics. Elementary interactions among elements such as electrons, phonons, and other quasiparticles in quantum materials give rise to the emergence of intriguing phases and offer enormous opportunities for the...
Health disparities are population specific variations in the presence of diseases and access to treatments, across racial, ethnic, and socio-economic groups which have adverse personal and community health consequences. The inequity is directly related to historical and current unequal distribution of social, political, economic, and environmental resources. Global healthcare governance (GHG)...
Two-dimensional (2D) semiconductors, such as molybdenum disulfide (MoS2), are emerging as key materials for next-generation electronics, addressing challenges in the miniaturization of silicon-based technologies. Despite progress in scaling-up 2D materials, integrating them into functional devices remains challenging, particularly in the context of three-dimensional integration. Here, we...
The presentation will address greenhouse gases decomposition and conversion into biofuels and hydrogen using sustainable catalysts. To this end, biocarbon (biochar) catalysts for NO decomposition (deNOx) and reverse water-gas shift reaction (RWGS) were produced from pyrolyzed (200, 350 and 500 ◦C) fern and willow impregnated with iron and nickel nitrates.
Willow impregnated with iron and...
OVERVIEW
Today’s global availability of a wide range of electronic goods facilitates unprecedented access to education, progress in science as well as the preservation of cultures around the world, granted there are substantial issues with the fair distribution of these benefits. Our current systems of production and consumption, however, generate vast amounts of Waste Electrical and...
Reduced dependence on fossil fuels in the energy, transportation, and chemical sectors will rely on the widespread adoption of a range of electrochemical technologies. One such technology, water electrolysis for the generation of hydrogen, has the potential to decarbonize energy storage and chemical production. We have developed a new catalyst for water oxidation; the catalyst is comprised of...
Alkaline treatment of rice husks yielded graphene, which was then used as a dopant to graphite, which was then used to create graphene composite electrodes for use in supercapacitors. Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, Electrochemical Impedance Spectroscopy (EIS), and Cyclic Voltammetry (CV) were used to characterise the electrode composite material. According...
Abstract:
The upsurge in research focusing on dithiocarbamate and thiourea derived Ru(II) complexes with potential applications in catalysis, sensor and medicine have been reported in recent times. This paper reports the continued efforts to serve this important research field. A benign one-pot reaction synthesis method using ruthenium(II) triphenylphosphine chloride as a metal precursor with...
Abstract
Nigeria is greatly endowed with natural resources and this has led to active mining activities carried out by artisanals leading to the continuous release of untreated wastewater freely into the environment.. Several wastewater treatment techniques such as, reverse osmosis, activated carbon adsorption exhibited low adsorption efficiency, generate toxic sludge and occupy space. This...
Among the potential materials used in electrochemical devices, reduced graphene oxide (RGO-H) stands out due to its high surface area, excellent electrical conductivity and strong mechanical properties. However, pristine graphene oxide has limitations of restacking of layers. One effective strategy to enhance graphene’s properties is heteroatom doping, which introduces heteroatom atoms into...
Anthropogenic CO₂ emissions are a primary driver of climate change, necessitating a shift to renewable energy sources to mitigate environmental damage. Hybrid photoelectrodes present a sustainable solution for converting CO₂ into liquid fuels, compatible with existing energy infrastructure for storage and distribution. These hybrid photoelectrodes, which combine molecular catalysts with...
Croton megalabotrys mixed with Ricinnus cummunis and coconut seed oils produced high quality organic soaps with some levels of antioxidant and antimicrobial activities. The pHs of these soaps ranged from 10.01 and 10.30 showing that these soaps are mildly alkaline and hence cannot burn the skin while at the same time killing bacteria and other microorganisms on the skin surface. The low levels...
Europium carboxylates were synthesized and in situ self-assembled to illustrate ligand and chemical environment influence on magnetization. The compounds [Eu(O2(CH3)n) x(H2O)2]m, in which n and m are determined by the carboxylate acid, obtained have the same structural components regardless of the alcohol provided as confirmed by XRD. The spatial arrangement of these compounds is shown to...
Microorganisms interact with fluid interfaces in contexts relevant to health, industry and the environment. The dynamic interaction of cells with energy-rich interfaces causes them to adsorb and become trapped, eliminating a patch of the interface, and lowering the free energy of the system. However, very little is known about the effects of interfacial tension and associated stresses at...
Nowadays, one of the main technological challenges that we are facing is the ability to provide a sustainable supply of clean energy and, among all renewable sources, solar energy displays the greatest potential. Recently, the development of novel synthetic strategies has led to the preparation of nanostructured materials displaying unique properties compared to the bulk counterpart systems,...
Innovation in materials science and engineering resides in our ability to control the structure of materials at the nanoscale in order to design advanced materials with outstanding functional properties (electrical, optical, magnetic, photocatalytic, etc.). One of the most powerful means to arrange matter at the nanoscale is to use laser produced plasmas due to their exceptional ability to...
Keywords: Water splitting, Covalent Organic Frameworks, electrocatalysis, photocatalysis, Conjugated reticular oligomers
Theme: Materials for Energy
Abstract
Covalent Organic Frameworks (COFs) provide a flexible platform for advancing water splitting technologies. To address slow kinetics and limited active sites in electrocatalysis, stable Metal-Salen COFEDA was synthesized to improve...
Advanced Synchrotron Light Sources, such as the Advanced Light Source in Berkeley among many others, are scientific infrastructure giving access to thousands of users from around the globe to perform state of the art research on a wide variety of scientific fields. This presentation will overview the types of beamlines that are available and the planned upgrade of the ALS to continue to...
Amyloid fibrils interact with metal ions via metal-ligand supramolecular interactions whose energy is of the order of tens to hundreds of KBT (1). The occurrence and abundance of the 20 essential amino acids in food-based amyloid fibrils derived from inexpensive animal and plant proteins, including from food waste and agricultural side streams, combined with the extreme aspect ratio of the...
An investigation into transition metals single atom catalyst for Hydrogen production via Ammonia decomposition - A DFT study
NOMCEBO P. MOTSA 1*, DANIEL A. ODUMA 1, CECIL N.M. OUMA 2, ENI OKO 3, MICHAEL O. DARAMOLA 1
1.Sustainable Energy and Environment Research Group (SEERG), Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology,...
My talk will focus on recent efforts in my lab to design novel conjugated polymers and explore their use in iono-electronic devices. Our research aims to develop next-generation smart electronics for both healthcare applications and future consumer products. The implementation of such devices is challenging, as it requires electronic hardware with: i) excellent mechanical flexibility, ii)...
ABSTRACT
Solar steam generation has received a lot of attention because of its ability to produce clean water with minimal energy consumption. However, obtaining an environmentally friendly, long-lasting, and powerful solar absorber with a practical large-scale system to generate efficient fresh water remains a challenge. Thus, in this work, a new system of graphene oxide-activated...
Development of next generation materials for applications in sustainable energy and beyond require us to study the structure of real materials in real devices even as they operate: for example, putting operating batteries in the beam, studying spatially resolved labs-on-chip, doing real-time autonomous experiments and using computed tomography to see diffraction from cross-sections of bulk...
Determination of Leached Chemicals from End-Of-Life Tires Using EPA Methods
ZIMAKO PHILIP ONYEME1 and JOHN D. ATKINSON1
1Environmental And Water Resources Engineering, University at Buffalo, Buffalo, USA
Corresponding author: John D. Atkinson (atkjdw@buffalo.edu)
Keywords: (End-Of-Life Tires, 6PPD, EPA Methods, Leachates, Contaminants)
Theme: Materials for Manufacturing
Due to the...
This study explores the structural and photoelectrochromic enhancements in tungsten oxide (WO3) films achieved by doping with 5wt% platinum on carbon (Pt/C) for advanced photoelectrochromic devices. X-ray diffraction (XRD) analysis revealed that Pt/C doping leads to a reduction in the crystallite size of WO3 from 26.5nm for undoped WO3 to 14.3nm for Pt/C doped WO3, as evidenced by reduction in...
Multi-disciplinary multi-user facilities like BESSY II, are intrinsically divers, welcoming scientists from around the globe and from a variety of research fields (including physics, chemistry, energy research, biology, medicine, cultural heritage, and more).
However, a look at the worldwide (science and education) landscape reveals a massive imbalance of possibilities. Inequality, poverty,...
This paper presents experimental study of ultra-low friction on carbon coated equiatomic and non-equiatomic complex concentrated alloys (CCAs). Carbon nano crystals with graphene signatures were deposited on equiatomic (FeMnNiCoCr and FeMnNiVCo) and non-equiatomic (Fe40Mn40Cr10Co10 and Fe40Mn40Ni10Co10) CCAs. The deposition was done by using a low-cost and novel high temperature biowaste...
The ability to assemble arbitrary 3D structures using nano- to micron-scaled colloidal building blocks has several interesting potential applications, including photonic, electronic, and biological. To achieve this, the combination of optical tweezers (OT) with two-photon polymerization (TPP), offers the advantage of complete 3D optical manipulation and immobilization of particles without the...
Protons play an integral role in numerous electrochemical and chemical conversion reactions, such as CO2 reduction and water splitting. Redox active transition metal oxides can incorporate protons, either via adsorption onto their surface or by insertion into the bulk structure. Understanding the proton-coupled electron transfer (PCET) and proton insertion-coupled electron transfer (PICET)...
In this research, DFT and TD-DFT calculations were performed on two phenyl aniline imidazole moieties, namely (4’(diphenylamino)-[1,1’-biphenyl]-4-yl)(4-(4’(diphenylamino)-[1,1’-biphenyl-4-yl)-1-methyl-1H-imidazol-2-yl)methanone and (4’(diphenylamino)-[1,1’-biphenyl]-4-yl)(4-(4’(diphenylamino)-[1,1’-biphenyl-4-yl)-1-octyl-1H-imidazol-2-yl)methanone as well as two carbazole aniline moieties ...
Titanium alloys are promising candidates for use in biomedical applications for orthopedic implants due to their low Young's modulus, high strength, and good biocompatibility. Amongst Ti alloys, Ti6Al4V alloy is the most widely utilized for biomedical implants. However, both alloying elements Al and V in Ti6Al4V, have adverse effects in human body which is not desirable. Currently, β-type...
Synchrotron-light sources are super microscopes with different sets of experimental techniques those are powerful enough to reveal the tiniest and the most vital details about matter in any form and for numerous applications in basic and applied science; such as physics, chemistry, biology, pharmaceuticals and biomedicine, materials science, environment, pollution and agriculture, industrial...
Excess carbon dioxide (CO2) emission is one of the major causes for global warming, resulting in catastrophic weather disasters around the globe. The electrochemical reduction of CO2 over transition-metal catalysts is one of the sustainable routes for producing high-value hydrocarbons and energy-dense chemical fuels. Among many single-component catalysts, Cu is the only material known to...
The co-digestion of waste activated sludge (WAS) with food waste (FW) has the potential to produce enough biogas to power entire wastewater treatment plant operations and even produce excess power that can be supplied to the grid. The current study evaluates the feasibility of the approach and its applicability to local settings in South Africa. The monodigestion of WAS (Monodigestion) and...
Vernonia amygdalina , a widely distributed indegenous plant speciesall over Africa famed for its wide range of use in traditional medicine including anti bacterial, anti diabetic , anti cancer potency mediated the biosynthesis of silver doped zinc oxide (Ag-ZnO) nanoparticles through an ecofriendly easily scalable simple co-precipitation method. The morphology of the synthesized nanocomposite...
Silicon has driven semiconductor advancements through miniaturization, but its scaling challenges necessitate exploring new materials. Two-dimensional (2D) materials, with their thin structure and high mobility, are promising alternatives. Recent years have witnessed significant progress in wafer-scale growth, high-performance field effect transistors (FETs),and integrated circuits based on 2D...
In this study, a nanocomposite consisting of polyaniline doped with 2-napthalenesulfonic acid and decorated with zero-valent nickel nanoparticles (PANI-NSA@Ni(0)) was investigated for its efficacy in removing hexavalent chromium from synthetic effluent. This study concentrated on optimizing adsorption conditions, including pH and dosage, and identifying essential parameters for developing...
Thermoelectric devices provide a solid-state route to capturing heat energy or creating cooling. GeTe and MnTe are thermoelectric materials with different crystal structures, providing an opportunity to explore the Ge1-xMnxTe alloy space. This work studies the phase space of GeTe and MnTe alloys in order understand the impact of site substitution on electron and phonon transport. We...
ED MITCHELL1
1European Synchrotron Radiation Facility (Business Development Office, Grenoble, France)
Corresponding author: Ed Mitchell, mitchell@esrf.eu
Keywords: innovation, industry,
Theme: African Light Source session
The European Synchrotron Radiation Facility (ESRF) has worked with industry from even before the first light was delivered in 1994. The ESRF’s Business Development...
During the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed for high resolution electron microscopy, especially transmission and scanning transmission electron microscopy (TEM and STEM). For example, unsupervised
primitive unit cell extraction and automated crystal distortion and defect detection.
Here, we propose and...
Over the last decade, there has been a growing body of experimental work showing that proteins devoid of aromatic and conjugated groups can absorb light in the near-UV beyond 300 nm and subsequently, fluoresce in the visible. Understanding the origins of this phenomena offers the possibility of designing non-invasive spectroscopic probes for local interactions in biological systems. It was...
This study investigates the corrosion inhibition properties of a synthesized environmentally friendly copolymer composite, Polyethylene glycol L-proline (PEGLP), in a 1 M hydrochloric acid environment. Using gravimetric techniques, we assessed key parameters such as corrosion rate, inhibition efficiency, thermodynamic characteristics, and adsorption behaviour. Our findings indicate that...
Heterogeneous photocatalysis is an emerging process allowing the generation of solar fuels from water and CO2. However, the photocatalytic activity is currently very low. In plasmonic photocatalysis, the semiconducting photocatalyst is decorated with a plasmonic nanoparticle, resulting in a significant increase in photocatalytic activity. However, most plasmonic photocatalysts are based on Au...
X-ray computed tomography (XCT) has proven to be a very useful technique with applications in materials science on carbon fibre composites for example, lithium-ion battery research, in palaeontology and geology among many others. The resolution attainable in XCT is limited, however, ptychography is a lens less technique which can be used to obtain nanometre resolution and allows quantification...
Diabetes mellitus is a metabolic disorder characterized by high level of blood sugar as a result of deficiency of insulin. This study evaluates the hypoglycemic activity of methanol extracts of Buchholzia coriacea and Garcinia kola seeds in alloxan induced diabetic rats. The phytochemical composition was determined by standard methods. The acute toxicity study was performed using Lorke’s...
In a continent like Africa where challenges such as climate change impacts, energy needs, access to resources and data management are acute, the development of basic sciences is more necessary than ever. The East African Institute for Fundamental Research (EAIFR) was established in Rwanda as an ICTP partner institute and a Category 2 institute under the auspices of UNESCO to address the...
Scanning Electron Microscopy (SEM) coupled with Energy Dispersive X-ray Spectroscopy (EDS) is the cornerstone in geological analysis, facilitating detailed mineralogical characterization from thin sections and particulate rock samples. Backscattered Electron (BSE) imaging, EDS analysis, and Cathodoluminescence (CL), provide invaluable insights into the composition and microstructure of...
The rise of graphene and related 2D materials makes it possible to form heterostructures held together by weak interplanar van der Waals (vdW) interactions. The interactions of such 2D layers with adventitious contaminants is able to exert a strong effect on its major electronic characteristics [1]. However, the controlled incorporation of ordered organic molecules within these systems holds...
Please see attached abstract in Word format. Thank you.
The importance of sustainable development and its factors, along with their implications for Africa and global progress, is critical. The presentation broadly examines solar energy and hydrogen molecule as an energy vector for mobility, with specific cases considered. It explores the conversion of solar energy via photo-catalysis and photovoltaic on 2D materials. Additionally, the application...
Water electrolysis is a key technology for meeting global energy demands by sustainably producing green hydrogen and oxygen fuel. While significant progress has been made to develop catalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), the performance of electrochemical cells remains limited by the lack of dual-selectivity, corrosion-restant catalytic...
Congo red (CR) dye was electrolyzed out of an aqueous solution using graphite and lead dioxide-modified graphite (G/PbO2) as the anode materials in a two-electrode batch reactor cell. Energy dispersive spectroscopy (SEM-EDS) and atomic force microscopy (AFM) were used to analyze the electrodeposited lead dioxide film. According to a comparative study of the anode materials' relative...
ABSTRACT
In Botswana mining is well-known to have surpassed the significant contribution to gross domestic product (GDP) made by agriculture, and more specifically the beef industry post-independence. Mining activities such as the diamond production has now become an important contributor to the development of the country and livelihood as a whole. However, mining operation in general do...
Devices for electrochemical energy storage such as supercapacitors play an important role in current technologies and are potentially relevant players in the quest for a more sustainable development. Atomistic simulations of their microscopic behavior provide important information to complement experiments and foster progress [1]. However, the size and length scales of these simulations often...
Typically, in alloy design, thermodynamic modeling is employed to foresee equilibrium states. This is succeeded by thermomechanical treatment to disrupt the equilibrium state, followed by final annealing treatments to achieve a consistently stable state for practical applications. However, this conventional approach considers thermal activation, stress, and chemical stress separately, often...
Lead (Pb) toxicity and instability of Pb halide perovskite solar cells continues to hinder the commercial success of perovskite solar cells (PSCs). In response to this challenge, the scientific community has increasingly turned its attention to lead-free alternatives, such as antimony-based perovskites, which exhibit notable stability. However, despite their potential to resolve the toxicity...
The global water pollution crisis, driven by industrial activities like textile dyeing, urgently demands efficient wastewater treatment solutions. This study evaluates the potential of silica derived from coal fly ash as an affordable and effective adsorbent for removing methylene blue (MB) dye from water. The Response Surface Methodology (RSM) and Central Composite Design (CCD) were employed...
Conjugated polymers are formidably rich systems where the photophysical and electronic properties are enmeshed with their complex macromolecular structure. In the case of π-conjugated polymers, the photoaggregates are sensitive to the local chain conformations such that a wealth of information about the polymer’s nanostructure can be extracted from linear absorption and photoluminescence...
Dislocation interactions and behavior of a wire arc additive manufactured nickel-aluminum-bronze (NAB) alloy subjected to uniaxial tensile loading were investigated in this study. A unique multi-scale methodology involving atomic-scale, high resolution scanning transmission electron microscopy (STEM), high-angle annular dark-field (HAADF)-STEM and low angle annular dark field (LAADF)-STEM was...
Keywords: Hydrolytic crack, poly(ethylene terephthalate), pH effect, subcritical crack growth
Theme: Materials for ENVIRONMENT, WATER, and SANITATION
Poly(ethylene terephthalate) (PET) is a thermoplastic of high-volume applications, and is identified as Number 1 in the Resin Identification Code on single-use packages. The ester bonds in the polymer chains are prone to hydrolysis, but the...
As the demand for renewable energy integration and portable electronic devices grows, high-performance energy storage devices are becoming increasingly important. Lithium-ion batteries are often the preferred choice due to their impressive energy density. Passive components, like current collectors, conductive additives, binders, and separators, comprise around 25 w% of a lithium-ion battery,...
Computational science has benefited for many decades from the algorithms and the hardware that have made it one of the greatest accelerators of research, with results and impact that run deep in science and technology The key challenges that it faces are those of predictive accuracy, with simulations able to capture the quantum nature of electrons and nuclei; of realistic complexity, aiming to...
Corresponding author: Yedilfana.setarge@aau.edu.et;obodokingsley@gmail.com
The structural, electronic, optical, and photovoltaic properties of Sn/Ge substituted 2D slightly shifted DJ phase (3AMP)4Pb4I16 perovskite were investigated using first principle calculations. The toxic Pb was substituted in the primary geometry by less toxic Sn/Ge.We found that Ge/Sn doping is energetically...
The human gastrointestinal (GI) tract hosts a balance of healthy and pathogenic microorganisms collectively known as the gut microbiome. Disruptions in this balance, known as dysbiosis, occurs due to factors such as antibiotic usage and aging, leading to increased susceptibility to pathogens like Clostridium difficile. Colon infection by C. difficile causes tissue damage and can lead to...
In today's world, supercapacitors (SC) are widely used as energy storage systems in an array of fields, including portable electronics, transportation, and clean energy. However, the effectiveness of these devices (charge storage capacity and cycling stability) would be heavily influenced by electrode materials that would allow for greater capacitance, energy, and power. Cu/Ce-based...
Amongst the commercially available titanium alloys, Ti6AL4V alloy is the most widely used in orthopaedic applications. However, its high elastic modulus causes stress shielding effect, while the vanadium and aluminium that dissociate from the parent material can cause long term health problems e.g., Alzheimer disease and neuropathy. These challenges have motivated for the development of...
Energy is an enabler, a fundamental resource that makes other processes, developments, or activities possible. Among various renewable energy solutions, solar energy through photovoltaic technology is believed to be the most promising. Dye sensitized solar cells have emerged as a technically and economically viable alternative to silicon solar cells. The photovoltaic conversion efficiency...
Phosphorus (P) is an essential element for all life forms and a finite resource that must be mined. The P cycle plays a critical role in regulating primary agricultural productivity, making it a limiting nutrient for food systems. To ensure high yields, most agricultural practitioners apply excess P. This practice often leads to P runoff, which causes detrimental environmental effects on...
In our previous work, we developed an invariant neural network potential for pure zeolites via active learning, resulting in a dataset of 16,552 structures from ten silica polymorphs. Using this dataset, we built a model based on an equivariant message-passing neural network architecture. This new potential significantly reduced training errors for both energies and forces. A validation test...
Microplastic pollution in drinking water has become an increasing concern for discerning consumers due to potential health risks to humans. Using plastic cups for hot drinks such as tea, coffee or milk could release microplastics and/or nanoplastics which are very harmful to human health. The failure to remove these plastic pollutants from the human body may cause chronic inflammation and...
Electrical energy storage (EES) is one of the most critical areas of technological research around the world. Supercapacitors are promising devices for highly efficient energy storage and power management. This study explores the innovative use of discarded face masks as a sustainable precursor for the production of activated carbon, aimed at enhancing supercapacitor performance. With the rise...
The development of sustainable energy technologies is a critical point of attention to many developing countries; thus, it is crucial to develop education that fosters young engineers and scientists to advance the technology. The SciBridge Project aims to promote research collaborations on emerging materials for renewable energy between U.S. and African university students. The organization is...
Transition metal-oxide nanoparticles (NPs) have gained research attention for applications in optoelectronics devices such as dye-sensitized solar cells (DSSCs). The major components of a DSSC are a photo-anode, an electrolyte, and a counter electrode. Platinum (Pt) has mainly been used as an efficient counter electrode, however, it is scarce and very expensive and this has ignited research...
Tuberculosis (TB) is one of the leading causes of death worldwide. It remains a global health challenge necessitating innovative diagnostic techniques for early detection of the disease. Current established techniques, involve invasive procedures, and require laboratory tests that takes time leading to delays in diagnosis while the disease is progressing. To address these challenges, this...
Lung cancer has the highest mortality rate of all cancers worldwide and this is due to late detection of the disease. Current diagnostic techniques are invasive and expensive resulting in late diagnosis. Exhaled human breath offers an alternative rapid and non-invasive technique. This is because human breath has volatile organic compounds (VOCs) some of which can be biomarkers of certain...
Widespread use of antibiotic drugs such as norfloxacin (NFX) to treat common human infections is increasing the pharmaceutical pollution of global wastewater and surface water sources. As antibiotic pollution poses the risk of adverse ecological effects while also fueling antibiotic resistance, there is a need to optimize water treatment processes that remove antibiotics through sustainable,...
Carbon-rich materials have received a great deal of attention, as carbon is a raw material for many industrial products, and their production from various biomasses is currently an active area of research. Hydrothermal carbonization has been used as a chemical synthesis technique. Hydrothermal carbonization (HTC) is an active area of research in the synthesis of carbon-rich materials due to...
Supercapacitors are devices with high power density, low internal resistance, good cycling and thermal stability, and excellent charge and discharge rates. They are a good bridge between conventional capacitors and other energy storage devices such as batteries and fuel cells. However, supercapacitors have a challenge of limited energy density, which can be solved by improving the device's...
Aim of this study is to review the mechanical behavior and performance of metallic materials under extreme pressure and temperature.
Today state of art industrial gas turbines working at about 50-60% efficiency with temperature about 1500degree celicius, to achieve to this 60% require increasing temperature and pressure which lead to aging process in materials which leading to reduction of...
The study aims to explore the dynamics of energy transfer in molecular collisions, specifically using pyrazine as the energy donor and nitrous oxide (N2O) as the bath gas. Understanding these processes can provide critical insights into energy distribution in molecular systems, which is fundamental for advancements in fields such as chemical kinetics and photophysics. This research...
Many buildings suffer from moisture damage, leading to problems like mold, rot, and structural weakening. These issues arise from various sources: water rising from the ground, leaks, moisture absorption from the air, and condensation. Traditional building materials often exacerbate these problems due to their permeability and porosity. A shift towards more sustainable and moisture-resistant...
The Sagdeev potential approach in material science, particularly in plasma physics, provides a powerful method to study nonlinear wave behavior, such as ion acoustic waves, in plasma systems. These waves result from the interplay between ions and electrons, which affects energy transport and stability within the plasma. When electrons follow a Tsallis distribution—capturing non-equilibrium and...
To meet the energy demands of future electric vehicle (EV) technologies, high-energy-density batteries are essential for extending driving range. Anode-free lithium-metal batteries (AFLMBs) present a promising solution due to their superior energy density compared to conventional lithium-ion batteries (LIBs). $^{1-4}$ However, AFLMBs face challenges such as premature capacity degradation and...
Supercapacitors (SCs) have garnered significant attention in recent years owing to their exceptional attributes, such as high power density, prolonged cycle stability, and the capacity to fill the gap between the traditional capacitor and lithium-ion battery1. A pivotal focus has been on the refinement of electrode materials to optimize capacitance and overall performance, driving innovation...
Living in Africa comes with unique challenges and opportunities, requiring creative ways to live and survive. This fluid intelligence is needed in science and in addressing global challenges. From her complex soils and water ways to diversity in climate and people, Africa presents a unique combination of parameters that make her a fountain of innovation and creativity. Bureaucracy,...
Aramid nanofibers (ANFs), discovered at the University of Michigan, are a breakthrough nanomaterial derived from recycled Kevlar—a widely used polymer in military and transportation applications. By repurposing Kevlar, ANFs offer a sustainable pathway to create high-performance nanoscale membranes with transformative potential in energy storage and water purification technologies. ANF...
Chemistry encoded in DNA and optimized by evolution enables efficient, clean, sustainable routes to fuels, chemicals, materials, pharmaceuticals and more. Evolution not only optimizes, however--it can also innovate. We are learning to use evolution to create entirely new biocatalysts, ones that catalyze reactions unknown in biology and sometimes unprecedented in human-invented chemistry....
Targeted need: The escalating global climate crisis is primarily attributed to the excessive carbon emissions on our planet. Carbon sequestration is the capturing and storing atmospheric carbon dioxide and offers a potential solution to this crisis. This project is developing a scalable, cost-effective, and environmentally friendly technology for CO2+ sequestration. With this approach STL will...
Afterglow materials promise round-the-clock photocatalysis using stored electrons, holes, or energy to drive a chemical reaction in darkness after the cessation of illumination. Irradiation of WO3 nanoparticles temporarily turns the material blue, due to a transient NIR band that forms signaling the trapping of electrons. We show that WO3 nanoparticles are capable of retaining the trapped...
This paper discusses ongoing initiatives to transform African universities into agents of the continent’s development by leveraging Science, Technology, and Innovation to stimulate entrepreneurship. It highlights the approaches and strategies of a newly established and rapidly growing entity conceptualized by the United Nations Economic Commission for Africa (UNECA) under its Technology,...
We report the preparation, morphological characterization and photocatalytic studies of silver sulphide, copper sulphide and zinc sulphide nanoparticles. The compounds were prepared from thermolysis of corresponding copper(II), silver(I) and zinc(II) dithiocarbamate complexes single source precursors in different capping agents and at different temperature. The metal sulphide nanoparticles...
Laser-based few-cycle terahertz (THz) radiation sources have seen significant advancements in the past 20 years, driven by major progress in intense femtosecond laser sources. More recently, scientists have developed several critical technologies to generate intense THz pulses, leading to a new field of nonlinear THz spectroscopy. In this talk, I will review recent advancements in the...
In the vast majority of electrochemical devices, the reactions of interest occur at interfaces, where defects often serve to mediate the reaction pathway. In oxides, point defects, and in particular surface oxygen vacancies are generally the relevant defects in mediating electrocatalysis. Furthermore, surface defect formation energies are often lower than those of the bulk, resulting in defect...
Perovskite solar cells (PSCs) are a promising emerging technology on the cusp of commercialisation. With record power conversion efficiencies >26%, they are excellent candidates for low-cost and low-embodied energy photovoltaics. Their emergence as a promising technology is timely as we are on the brink of significant climate change and face the limits of current linear economic models....
Polyethylene terephthalate (PET) fibers are among the most ubiquitous of plastics. Used commonly in textiles, PET fibers are often blended with non-PET components such as dyes, coatings, and trims. These non-PET components disqualify the fibers from being mechanically recycled, leaving chemical recycling as the next best option to manage this waste. However, these non-PET components generate...
Hyperspectral and morphomechanical analysis at Elettra provides a powerful platform for advancing life sciences research. By combining high-resolution topographic and mechanical imaging in physiological environments with detailed chemical mapping, Elettra facilitates studies that span from the molecular to the cellular and tissue levels, thereby deepening our understanding of biological...
The localized plasmon resonance enables effective input of energy into metal nanoparticles by light irradiation. Using ultrashort laser pulses leads to the generation of a hot electron gas, the dynamics of which results in diverse phenomena: transient ultrafast modulation of the optical absorption and near-field, multiphoton emission of electrons and broadband light, and a strong localized...
Organic solar cells (OSCs) are one of the most promising photovoltaics (PV) for renewable energy conversion. OSCs can be produced using a solution process method at lower temperatures. Therefore, their production is much less energy-intensive than conventional silicon PVs. They exhibit other advantages due to their absorption tunability, lightweight, flexibility, and less toxic elements,...
In the last decade, the field of luminescent rare earth doped nanoparticles has progressed from the basic understanding of the photophysical properties governing their nanoscale luminescence to their use in a variety of applications, with considerable focus in biology and medicine. This interest stems primarily from the ability to stimulate these luminescent nanoparticles with near-infrared...
For careers outside academia, particularly getting into industry and entrepreneurial endeavors, additional skill sets are needed beyond one’s academic degrees. Skills to translate, transform or extend knowledge from one field or application to another help graduates contribute to the business of the companies they start or those that hire them. Innovation and entrepreneurial skills provide a...
Chromium contamination in industrial effluents is a major environmental issue due to its high toxicity and mobility. Natural polymers like polyaniline (PANI) and polypyrrole are commonly used as adsorbents in the removal of heavy metals from wastewater. PANI is particularly at-tractive due to its high conductivity, large surface area, easy and low-cost synthesis, and envi-ronmental stability....
Institute of Materials Structure Science located in Tsukuba, Japan, runs a synchrotron facility operating two synchrotron rings, Photon Factory (PF) and Photon Factory Advanced Ring (PF-AR). PF is operated with the beam energy of 2.5 GeV. PF-AR with 6.5 or 5.0 GeV provides higher energy regions. There are about 50 end stations including 6 x-ray absorption fine structure (XAFS) beamlines:...
Driven by the global initiative to accomplish net zero emissions by 2050, there has been growing consensus in embracing sustainable energy pathways. Solar electric power generation, solar hydrogen production from water and solar CO2 recycling are some of the most explored strategies that are considered green; however, for these approaches to be truly sustainable, the raw materials must be...
There is global need for optimizing the use of water that results from the increasing demand due to industrial development, population growth, climate change and pollution of natural water resources. One of the solutions is to use reclaimed water in industrial applications that does not require water of potable quality, such as cooling water. However, for cooling water, secondarily (treated)...
In the ever-evolving landscape of science and technology, bridging the gap between foundational research and innovative product development is paramount. This presentation delves into the critical steps to translate foundational science into product innovation. By exploring key case studies, we demonstrate how breakthroughs in basic research have led to transformative products and...
This study explores the potential of copper-doped nickel oxide (Cu:NiO) as a hole transport layer (HTL) in flexible photovoltaic (PV) devices using a combined first-principles and finite element analysis approach. Density functional theory (DFT) calculations reveal that Cu doping introduces additional states in the valence band of NiO, leading to enhanced charge transport. Notably, Cu:NiO...
Inorganic crystals combining both a high refractive index and a wide band gap are of great importance for many advanced optical applications. However, the observed inverse relationship between these two properties hampers a straightforward identification of promising materials. To go beyond a costly and time-consuming trial and error approach, an ab initio high-throughput screening was...
Africa is rich with natural resources that serve as feedstocks for new materials and products with commercial value. The continent also grapples with waste from various industries that could be transformed into valuable products. The presentation will highlight opportunities that exist for these products in selected industry sectors including agriculture, mining, wastewater treatment and...
Microplastics are a significant emerging environmental pollutant with profound implications for public health, particularly as novel substrates for antimicrobial resistance (AMR) development. Recent studies have shown that microplastics might accommodate not only microbial communities but also chemical contaminants and genetic material containing ARGs (antibiotic-resistant genes) through...
The Advanced Laser Light Source (ALLS, alls.inrs.ca) is a unique laser-based infrastructure providing a coherent rainbow of light and cutting-edge end-stations to its national and international users from academia, government, and industry.
The national facility, located at INRS-EMT, close to Montreal in Quebec, Canada, is home of the most powerful laser in Canada with 750 TW and high...
Transition metal carbides, oxy-carbides, nitrides, and carbonitrides (MXenes) constitute an ever-growing class of two-dimensional materials with unique properties, including high conductivity and surface area as well as versatile and tunable surface chemistry. Such a wide-ranging array of properties primes MXenes for various electrochemical applications and, hence, provides them with the...
Carnegie Mellon University Africa brings together students from over twenty African countries for engineering master’s degrees. These engineers come with entrepreneurial ambitions and produce many international African teams. Even more such teams are coming out of the pan-African university network Afretec that CMU-Africa recently launched. Most of the startup teams focus on technology or...
Biopolymers originate from renewable resources such as plant oils and agro-industrial waste. Due to the environmental concerns and sustainability issues around petroleum-based polymers, biopolymers are viewed as the wave of the future. When incinerated or degraded naturally, oil-based polymers release the greenhouse gas CO2, thus contributing to global warming. Biopolymers are considered...
Abstract
Quantum dots (QDs) are a subject of great interest in the domains of materials science, spectroscopy, sensors, biological imaging, diagnostics, and photovoltaics. SnO2 electron transport layers (ETLs)-based on nanoparticle (NP) dispersions have shown great potential and interest for perovskite photovoltaics. However, harish processing conditions and sophisticated synthesis...
Simulating reactor conditions inside a transmission electron microscope (TEM) gives insight into the rate of defect formation and survivability of materials in the environments in which they were designed to perform. Efforts to fully encapsulate dynamic processes occurring in a material have been challenging, owing to the large volume of information collected from an individual experiment and...
In this study, Solar energy was applied in photocatalytic degradation of organic pollutants in domestic waste water using nanoparticles of titanium dioxide (TiO2) deposited on thin films using electrophoretic deposition (EPD) technique. The EPD suspension related parameters and deposition conditions were first optimized for good quality film deposits. The suspension stability and deposition...
Keywords: Metavalent, Chalcogenides, Phonons, Antimony, Lead Telluride,
Theme: Materials for Energy
Higher chalcogenides, such as GeTe, GeSe and Sb2Te3, have been recently proposed as a new class of materials, called metavalent, which has distinct properties compared to metallic and covalent compounds [1].
Metavalent materials share an unusual combination of functional properties such as...
HUDA USMAN [1], TAGBO H.R. NIEPA [1,2]
[1] Carnegie Mellon University (Chemical Engineering Department, Pittsburgh, United States)
[2] Carnegie Mellon University (Biomedical Engineering Department, Pittsburgh, United States)
Corresponding author: Tagbo H.R. Niepa. tniepa@andrew.cmu.edu
Keywords: PDMS, magnetic nanoparticles, in situ cultivation, magnetic microbial cultures,...
Core-shell semiconductor quantum dots (SQD) were synthesized via the microwave irradiation method from Cadmium and Zinc sulphides (CdxS/Zn1-xS). The SQDs were incorporated into the electron transport layer of thin film polymer solar cells (TFPSCs) to assist in the light trapping and charge collection processes. The up and down conversion of radiation in SQD is expected to boost absorption...
Gurpreet S. Selopala, Swedha Madhu a, Umair Sohail a, Sukhjinder Singh a
a Sustainable Nanoengineering Lab, Department of Engineering, Faculty of Agriculture, Dalhousie University, 39 Cox Rd, Banting Building, B2N 5E3, Truro, NS, Canada
Corresponding author: Gurpreet S. Selopal, Email: gs.selopal@dal.ca
Keywords: Nanoengineering, Quantum Dots, Carrier-Dynamics,...
The advent of large language models and data-intensive AI algorithms has only intensified the already exponential demand for data. Seagate Technology is a mass capacity data storage provider, researching and manufacturing hard disk drive (HDD) technologies to store greater amounts of data cheaper and more sustainably. Novel technologies such as Heat Assisted Magnetic Recording (HAMR) require...
The propensity of cells to interact with nanomaterials has broad applications for diagnostics and therapies. Due to the small spatial scales and dynamic behaviors of live samples, precisely characterizing the nature of these interactions is challenging. The lack of detailed data hinders a rational-design approach for new materials. Here, we present how a standard fluorescence microscope can be...
Douglas Remhunga
Highness Tendai Mtemah
Rivaldo António da Costa
FABIAN I. EZEMA1,2
1Nano Research Group, Department of Physics and Astronomy, University of Nigeria, Nsukka
2Africa Centre of Excellence for Sustainable Power and Energy
Development (ACE-SPED), University of Nigeria,
Nsukka, Enugu, Nigeria
The world faces tremendous difficulties as the globe's population and energy consumption continue to rise. Fossil fuels and other raw resources,...
The 2023 IPCC AR6 Synthesis Report underscored that the pace and scale of what has been done so far, and current plans are insufficient to tackle climate change. We are in the Anthropocene, experiencing more frequent and more intense heatwaves, cyclones, hurricanes flooding and other weather extremes which increase existing human health and ecosystems risks. These risks intersect with impacts...
Farming is the basic livelihood in rural Ghana which places demands for good farm tools and equipment. Machetes are one of farm tools widely used in the country, however, there has been a rising concern from farmers about the rate at which their machetes, especially corrode, break and bend easily upon impact. Hence, there is the need to analyze and improve the performance of machetes locally...
The inability to continuously monitor biomarkers of human health status limits the current usefulness of sensing technologies. For example, most sensing systems cannot measure key low concentration biochemicals indicative of stress, inflammation, metabolic, and reproductive status. This information can transform health and wellness by providing real-time actionable feedback to wearers and...
One of the key advances in nanoscience and nanotechnology has been our increasing ability to reach the limits of atomically precise structures. By having developed the “eyes” to see, to record spectra, and to measure function at the nanoscale, we have been able to fabricate structures with precision as well as to understand the important and intrinsic heterogeneity of function found in these...
Building with concrete contributes significantly to climate change. One way to directly minimise the carbon footprint is to use so-called Supplementary Cementitious Materials (SCMs), which can replace ordinary Portland cement to a large extent and at the same time contribute positively to the binder properties. Currently, mainly binary and ternary binders are used, which, in addition to...
The growing demand for energy in modern society has driven the development of alternative energy sources and storage technologies. Our research group has a focus on perovskite solar cells (PSCs), as well supercapacitors. In this review, we will discuss our ongoing research on the development of materials and processes for improving PSCs and supercapacitors, specifically, the incorporation of...
The successful clinical translation of nanocarriers strongly depends on their biodistribution, biodegradation and elimination patterns in vivo. However, the visualization and quantification of nanomaterials in in vivo models is not trivial. A fundamental aspect of the fate of nanocarriers, in relation with their application in drug delivery, is their degradation. The stability of the core...
The application of supramolecular chemistry principles to the assembly of active layers for devices is challenging because molecule-substrate interactions are added to the molecule-molecule interactions present in solution. In this talk I shall illustrate what this implies for building an ordered array of fluorescent molecules at a specific distance from each other, while preserving their...
The research and development project aimed to improve the quality of earth based habitats through three (03) interconnected approaches: material, architecture, and socio-anthropological perception, in the context of Burkina Faso. The material approach improved the engineering properties and durability performance of compressed earth brick (CEB) stabilized with agro industrial by products, such...
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Perovskites have recently emerged as revolutionary materials in the optoelectronic industry owing to their outstanding electronic and optical properties. They have proven to be promising substitutes for silicon in the solar industry, with the potential of achieving higher efficiency and offering better cost-effectiveness. However, the development of perovskite-based photovoltaic (PV) cells has...
Recent World Health Organisation data reveals an 8 to 11-year gap between life expectancy and healthy life expectancy, highlighting the ongoing burden of diseases worldwide. Without significant intervention, achieving the United Nations Sustainable Development Goal 3, Good Health and Wellbeing for all, remains at risk. The growing geriatric population, estimated to reach 2.1 billion by 2050,...
This study assesses the performance of compound cement in binary system containing clinker (C) partially substituted by blast furnace slag (B), on the one hand, and in ternary system containing clinker (C) partially substituted by calcined clay of metakaolin (M) and by blast furnace slag (B), on the other hand. The slag was used to substitute the clinker up to 25%. The use of slag in...
Colloidal inorganic nanocrystals (NCs), typically ranging from 2 to 20 nm in size, exhibit remarkable properties such as quantum confined exciton emission and localized surface plasmon resonance, which can be tuned by altering the NC's size, shape, and electron density. These NCs can be assembled into percolating networks with collective properties dependent on their structure and particle...
Iron (Fe) deficiency-induced chlorosis is one of the major bottlenecks for soybean production, which can be ameliorated by Fe foliar feeding by following the 4Rs, i.e., right Fe compound, right concentration, right number of sprays, and right growth stage. However, the mechanism for Fe uptake through foliage is still unclear. Therefore, we evaluated the effect of different Fe formulations (Fe...
Due to their complexity, next-generation materials necessitate rigorous and precise structural characterization. Utilizing vibrational spectroscopy techniques, commonly employed in experimental laboratories, one can capture materials' features as spectroscopic fingerprints. However, complex spectra frequently require theoretical support to unambiguously decipher and assign the detected...
Civilisation and industrial evolution across the globe have led to the cumulative release of harmful and hazardous pollutants to the environs and water bodies. Industrial and domestic effluents including heavy metal ions and organic molecules pose severe health challenges with grave economic implications. This study searches for lasting solution via the development of nano-clay filters from...
Composites made up of polymer matrix and natural fibres have gained extensive attention due to their strength and safety issues. Sisal fibres, among others, have become viable reinforcing materials on the polymer matrix because of its resistance to deterioration in saltwater, affinity for certain dyestuffs, durability and strength. In this work, sisal fibres from three harvest groups were...
DNA-based molecular circuits able to perform complex information processing in biological systems are highly desirable. However, conventional DNA circuits are constitutively always in an ON state and immediately operate when they meet the biomolecular inputs, precluding precise molecular computation at a desired time and in a desired site. To address this issue, our group has used light and...
Inhibition of clustering and network formation of solid particles under stress represents the forefront of both fundamental and sustainability problems. The current theories of solid lubrication typically assume spherical shapes of the particles ignoring the related multibody effects. Commercial solid lubricants used for agricultural seed flow are based on interlayer slippage or low modulus...
LYNET ALLAN1, JULIUS M. MWABORA1,*, WINFRED M. MULWA2, EDWIN MAPASHA3 AND ROBINSON J. MUSEMBI1
1University of Nairobi, Department of Physics, Faculty of Science and Technology, P. O. Box 30197-00100, Nairobi, Kenya.
2 Egerton University, Department of Physics, Faculty of Science, P.O Box 536-20115, Egerton, Kenya
3 University of Pretoria, Department of Physics, Private bag X20 Hatfield...
Analysis of the quality of steel for reinforced concrete structures in Burkina Faso
DJOUBISSIE DENOUWE DECROLY 1, SORE SEICK OMAR 2, NSHIMIYIMANA PHILBERT 1, KAMGUIA KEMEGNE ARIANNE SAMUÉLA 1, MESSAN ADAMAH 1
1 Laboratoire Eco-Matériaux et Habitats Durables (LEMHaD), Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), Ouagadougou, Burkina Faso
2 Département Génie Civil...
Renewable energy presents an attractive alternative to fossil fuels due to its availability and eco-friendliness. Proton-exchange membrane fuel cells (PEMFCs), a key renewable energy technology, utilize hydrogen to produce electricity. In PEMFCs, an ion-conducting polymer (ionomer) serves both as a solid electrolyte separator and as a catalyst binder in electrodes. While the separator layer is...
Different nanotechnology platforms have been developed to improve the performance of drugs. Self-assembled polymeric nanoparticles produced by the spontaneous aggregation of amphiphilic block and graft copolymers in water emerged as one of the most versatile strategies to encapsulate and deliver hydrophobic small-molecule ones owing their high chemical flexibility and modularity to tailor the...
Recovery of phosphorus from waste water using natural waste were studied. The influence of pH, temperature and contact time was investigated. Recovering phosphorus from waste water is necessary as it is one of the most important macronutrients needed for the growth of plants; The fertilizer industry consumes 80% of natural, non-renewable phosphorus resources in the form of phosphate rock. The...
Dye-sensitized solar cells (DSSCs) are a promising renewable energy technology due to their low cost and ease of fabrication. The photo-anode plays a crucial role in the electron collection and transfer processes within the DSSC, and its performance is largely determined by its composition, band gap, and morphology. This study explores the potential of CuO/TiO2 nano-composites as photo-anodes...
Consecutive photoinduced electron transfer (ConPET) is a concept that König and his group introduced in 2014 to provide a solution to the high energy demanding (rate limiting) reactions in single electron transfer (SET). This work and conceptually related studies with rhodamine 6G, eosin y, and acridine have been employed for the photoreduction of aryl halides, activation of aryl bromides,...
Borassus palm or aethiopium palmyra is a palm species tree, widely spread in sub-Saharan Africa but its fruits don’t have any economic value therefore considered as waste. Natural borassus fibers were extracted from the fruits. The extraction technique was manual and didn’t require the use of any chemical agent to validate the eco-friendliness of the extracted fibers. Sorption and desorption...
Clean water is an essential requirement for all living beings. However, this becomes difficult to attain as the aquatic systems are contaminated with toxic heavy metals which pose a significant public and environmental health risks. Numerous approaches have been studied for the development of effective adsorbents for the removal of heavy metals from wastewater. In this study, magnetic...
Abstract: Towards the development of cost-effective and scalable techniques of metal oxide nanoparticles synthesis. Despite being known as a scalable method, the solvothermal technology has recently been shown to be economically unfeasible. The mechanochemical process has recently been identified as a more cost-effective and ecologically friendly alternative to the solvothermal method. Zinc...
With increasing concerns about environmental degradation, climate change, and resource depletion, there is a push towards adopting more sustainable technologies. Mycelium composites are emerging as a promising green solution for the construction sector and beyond, holding potential for Africa.[1] Mycelium composites are a class of biobased material made from agricultural organic residues and...
Ultrahigh-𝑄 crystalline disk-resonators have the capability to trap photons by total internal reflection for a duration of up to several tens of microseconds. Such exceptionally long photon lifetimes enhance nonlinear light–matter interactions, thereby permitting Kerr, Raman and Brillouin stimulated processes with record low threshold power. In this communication, we present some of the most...
The design of safe materials for use as antibacterial agent has been challenging for material scientists. Herein, the Ag/Ag2S/g-C3N4 heterojunction nanocomposite was prepared by using as-prepared bismuth(III) N-methyl-N-phenyl dithiocarbamate, graphitic carbon nitride and silver nanoparticles in the presence of oleic acid at 220 oC. The nanocomposite was characterized by using X-ray...
Melt-quenched Se70Te20Sn10 bulk samples were deposited by electron-beam evaporation into thin films on glass substrates. The annealing process was carried out at temperatures between 100°C and 400°C for 1.5 hours to investigate its effect on the structural and optical properties of the thin films by X-ray diffraction and UV-vis spectroscopy. XRD confirmed that the as-grown Se70Te20Sn10 thin...
The demand for energy is currently competing with the alarming rate of climate change. In many parts of the world, especially Africa, charcoal has been the dominant fuel for domestic heating and cooking. In Ghana, rapid population growth has led to increased dependence on unsustainably produced charcoal, which consequently affects forest vegetation cover. This work presents the design and...
This study examines the effectiveness of an eco-friendly copolymer, Polyethylene glycol L-proline (PEGLP), as a corrosion inhibitor for mild steel in a 1M HCl solution, utilizing polarization and impedance spectroscopy techniques. To evaluate the protective effects of PEGLP, surface morphology was analysed using atomic force and scanning electron microscopy. Various inhibitor concentrations...
Subcutaneous pancreatic islet transplantation as a source of insulin secreting beta cells has become a viable treatment for type 1 diabetes alleviating the need for daily insulin injections. Hydrogel scaffolds are known to protect cells from immune response and can be used to encapsulate pancreatic for transplantation. They can also be loaded with anti-inflammatory/pro-angiogenic molecules...
Southern Africa is increasingly recognized as a climate change hotspot, with projected warming and drying trends worsening the existing stresses in this naturally warm, dry, and water-scarce region. Concrete production is a major contributor to global carbon emissions, accounting for 8 percent of the total, with 90 percent of these emissions stemming from the production of clinker, the primary...
MICHAEL J. GORDON
University of California, Santa Barbara (Chemical Engineering, Santa Barbara, CA, USA)
Corresponding author: Michael Gordon, gordon@ucsb.edu
Keywords: bio-inspired, photonics, metasurfaces
Theme: Advanced Materials
This talk will highlight our work to understand and translate fundamental biological mechanisms of light manipulation and surface ‘engineering’ into new...
African trypanosomiasis is an infectious vector-borne parasitic disease of humans and animals with serious public health challenges in some regions of sub-Saharan Africa. Current chemotherapy of the disease is beset with the problems of high cost, non-availability, parasite resistance and toxicity. This study evaluated the in vivo anti-trypanosomal, and Cysteine protease inhibitory activities...
Abstract
Corn milling is widespread used in Ghana due to the high consumption of local delicacies. However, the manufacturing of corn mill plates is handled by a few artisans with limited metallurgy knowledge. Locally made grinding plates, composed of 95 wt% cast iron, wear out 3–4 times faster than the imported grinding plates. This gap necessitates evaluating locally manufactured plates...
Approximately 15% of the global population, lack access to safe drinking water due to inadequate sanitation and the high cost of effective water purification systems. While research has produced various purification technologies, many of these solutions remain prohibitively expensive for developing countries. Existing affordable porous ceramic filters, which could help address these issues,...
Concerns about climate change and greenhouse gas emissions from the cement industry have prompted the promotion of green and sustainable construction such as stabilized earth construction. To this end, researchers have developed a technology for stabilizing compressed earth blocks (CEBs) using a geopolymer binder to reduce environmental pollution. Unfortunately, this technique, although more...
NUMERICAL MODELLING AND EXPERIMENTS OF POLYMER ENHANCED NANOPORE SENSING FOR MATERIAL CHARACTERIZATION
Eugene Gyasi Agyemang1, Gayathri Mohanan2,3,#, Chalmers Chau2,3, Martin Andrew Edwards1, Paolo Actis2,3,
1 University of Arkansas (Department of Chemistry and Biochemistry, Fayetteville, USA)
2 University of Leeds (School of Electronic and Electrical Eng. and Pollard Institute, Leeds,...
Chiral edge states are the fingerprint of the bulk-edge correspondence in a Chern insulator. Co-propagating edge modes, known as antichiral edge states, have been predicted to occur in the so-called modified Haldane model describing a two-dimensional semi-metal with broken time reversal symmetry. These counterintuitive edge modes are argued to be immune to backscattering and extremely robust...
Cameroon is often call “Africa in miniature” for its diversity in many areas such as its soil rich of different minerals, its vegetation, the huge variety of its step meal and all the type of climates found there. This country also has to face the issue of waste pollution, especially waste plastic. Besides, the cost of building houses are still high in Cameroon. This mainly due to the high...
The development of new therapies for the management of diabetes mellitus is of great interest worldwide, as maintaining glycemic control with conventional drugs is still an issue. This research was undertaken to investigate the in vivo antihyperglycaemic activity of the crude and different fractions (n-hexane, ethyl acetate and methanol) of ethanol extract of Piliostigma thonningii leaves on...
The combustion of coal generates fly ash, a waste containing valuable oxides of Si and Al, which are essential for zeolite synthesis. This study compares two pretreatment methods—acid refluxing and acid fusion—to reduce Fe and Ca levels in fly ash before zeolite synthesis. In acid refluxing, fly ash is mixed with hydrochloric acid (HCl) and refluxed, while in acid fusion, fly ash and acid are...
The comparison of the effect of UV-radiated and non-radiated Helichrysum kraussii (H. kraussii) extracts was studied for mild steel corrosion in 1.0 M H2SO4 at 30-60℃ using Liquid chromatography-mass spectrometry (LCMS), gravimetric weight loss analysis, electrochemical analysis and Fourier Transform Infrared spectroscopy (FTIR). The LCMS confirmed the trans-to-cis shift geometrical...
In 2070 the world will be inhabited by 11 billion people. One of the main problems, humanity will have to face is the sustainability of its materials production and consumption. By then, close to 1 billion tons of plastic will be produced yearly. Even if all polymers were to be bio-sourced and bio-degradable, there would still be a huge sustainability challenge both in terms of sourcing (to...
This work focuses on the development of efficient quantum algorithms for solving many-body quantum problems by implementing variational quantum eigensolver (VQE) associated with shallow quantum circuits and without optimization issues such as Barren plateaus. The aim of this research is to overcome the disadvantages of hardware-efficient ansatz (HEA) through a novel approach that would...
Abstract
Access to clean drinking water has been a challenge in Africa and globally due to factors such as industrial water pollution, urbanization, population growth, and climate change. Textile industry is among the highly water consuming sectors with significant dye-containing wastewater discharges. Although membrane-based water treatment has shown developments with commercial products in...
One of the prerequisites for achieving sustainable development is the design and production of materials that focus on energy-saving processes as well as environmentally and eco-friendly use of local raw materials, with engineering properties suitable for building constructions. The present work offers an alternative way of implying the enhancement of the reactivity of tropical clayey soils...
The 2D materials have shown tremendous growth and have been successfully explored as anode materials. The first example of a 2D electrode material for LIBs is graphene. Recently, there has been a lot of attention on the
topic of 2D transition metal Boron (MBene). They are easier to synthesize, have high specific capacities, good electrical conductivity, highly active surfaces, high-rate...
ZAMANGWANE HLATSHWAYO1, CLINTON MASEMOLA1, MANOKO MAUBANE-NKADIMENG1, LERATO MACHOGO-PHAO2, SIZIWE GQOBA1
1University of the Witwatersrand, Molecular Science Institute, Johannesburg, South Africa
2Mintek, Johannesburg, South Africa
Corresponding author: Zamangwane Hlatshwayo, 2107045@students.wits.ac.za
Keywords: selective, heterojunction, ammonia, room temperature
Theme:...
The additive manufacturing of multilayered materials from multi-component inks would be revolutionary for the fabrication of electronic devices, optical and protective coatings, and biological substrates, by reducing production costs and expanding the flexibility of design. This is a completely novel technology, which is based on the stratification of different solvents and particles/polymers...
Agroforestry systems, which combine trees and crops, benefit from the use of innovative biocomposite materials for improved land management and sustainability. This study investigates the role of biocomposites—materials made from natural fibers and bio-based polymers—in enhancing soil structure, reducing erosion, and supporting plant growth. The use of biocomposites in creating erosion control...
Kgomotso N.G. Mtshatshenia,*, Sithembela A. Zikalalab, Eliazer B. Naidooa, Edward N. Nxumalob
aDepartment of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark, 1900, South Africa
bInstitute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Florida, 1709, Johannesburg, South...
In this work, pure 2D (PEA2SnI4) and 3D/2D (MASnI3/PEA2SnI4) bi-layer Sn-based perovskite thin films were deposited using the sequential physical vapor deposition (SPVD). The effect of film thickness, annealing time, substrate deposition temperature and guanidinium tetrafluoroborate (GuaBF4) surface treatment on the structural, morphological and optoelectronic properties together with device...
Surface passivation of MASnI3 films with FPEAI without annealing to avoid formation of 2D layer on top has been demonstrated. The optimum pristine MASnI3 film was achieved by varying MAI thickness and annealing time. XRD results showed that at 5 & 7 nm FPEAI treatment, there was no formation of F-PEASn2I4 2D layer on top of the MASnI3 3D perovskite. Pristine MASnI3 films showed many pinholes...
In this work, we incorporate carbon-based materials such as fullerene (C60) and graphitic carbon ni-tride (g-C3N4) in manganese cobalt oxide (MnCo2O4) matrix via a green synthesis method for super-capacitor applications.
The MnCo2O4 @ C60/g-C3N4 composite was synthesized through a green solvothermal method from an aqueous extract of Arachis hypogaea biomass (peanut shell) as solvent....
Several hazards in the low Earth orbit (LEO) environment can cause degradation to spacecraft material and the electronic instruments on board. The four main hazards that can affect spacecraft material are atomic oxygen, vacuum ultraviolet (VUV), micrometeoroids and orbital debris, and thermal cycling. The current study uses density functional theory (DFT) methods to evaluate polymer,...
Core to the prospects of cellular engineering are facile yet tunable methods to load cells with a range of therapeutic cargo. The process ideally allows for delivery to many cells at once and maintains cargo and cell faculties after transport. Electroporation (applying an electric potential to a cell suspension) has long been utilized to deliver biomolecules to cells, but the drawbacks of...
In addressing the urgent need for sustainable and efficient strategies to remediate toxic chromium (Cr(VI)) contaminants, this study explores the synthesis and photocatalytic capabilities of a two-dimensional (2D) CuO/reduced graphene oxide (rGO) nanocomposite. The CuO/rGO hybrid was synthesized via a high-energy sonochemical approach, enabling intimate interfacial contact between CuO...
Nanomaterials represent a significant portion of the rapidly expanding field of nanoscience-nanotechnology, for which shape and size remain essential in nanoscale device manufacturing. Size reduction can lead to new physicochemical properties and a range of applications. Access to these nanoscale entities requires the development of suitable elaboration methods. Conventional procedures for...
Carbon nanotubes (CNTs) have garnered significant attention due to their remarkable electronic and magnetic properties. In this chapter, we introduce multiwalled carbon nanotubes covered with tantalum (MWNTs/Ta) to systematically modulate the magnetoresistive properties of the MWNTs/Ta hybrid nanostructures. We observe distinct changes in both positive and negative magnetoresistances of...
This study explores the fluoride removal efficiency of a novel and sustainable alkali-activated glass-hydroxyapatite (AAC-P@HAp) composite for water treatment applications. The composite, formed from waste glass activated with alkaline solutions (produced from ash of plantain bunch stalk) and hydroxyapatite (HAp) (produced with egg shells), aims to provide a cost-effective and environmentally...
Precision agriculture aims to optimize crop yields while minimizing resource use and environmental impact. Smart materials, including sensors, actuators, and responsive materials, play a critical role in achieving these goals. This research delves into the development and application of smart materials that respond to environmental stimuli such as moisture, temperature, and...
To mitigate the climate change and reach a carbon neutral society before it is too late, a mix of sustainable energy technologies are needed. In this talk I will present research from my group in the area of sustainable batteries beyond Li ion, green H2 from the electrolysis of biomass derivatives as well as fuel cells free of Pt electrocatalysts for the cathodic reaction.
Batteries will...
Coherent X-ray imaging and lensless microscopy have revolutionized our ability to explore the nanoworld, providing unprecedented insights into the structure and dynamics of materials at atomic and molecular scales. In this talk, I will present cutting-edge X-ray techniques, including Bragg Coherent Diffractive Imaging (BCDI), Bragg Ptychography, nanotomography, and advanced spectroscopic...
The manufacturing sector is a major contributor to global greenhouse gas emissions, accounting for about 20% according to the Intergovernmental Panel on Climate Change (IPCC). Circular manufacturing (CM), which minimizes waste, and maximizes resource use and re-use, aligns with circular economy principles which are critical to 21st century industries. Hardmetals are composite materials that...
Batteries with high energy densities (energy stored per mass or volume) are required to electrify transportation and the grid. However, current Li-ion batteries are plagued by the presence of critical minerals such as Co, Ni that are geographically limited and increase costs. In addition, the presence of volatile and flammable electrolyte solvents has led to a poor safety profile and...
The ability to fabricate state-of-the-art electronic and photonics systems on soft and deformable substrates can find tremendous opportunities in sensing, bio-engineering, robotics, health-care, and smart wearables devices. The materials and processing challenges however remain significant since most existing functional systems rely on rigid materials, with processes not well adapted to soft...
Biochar (BC) is a carbon-rich derivative from the thermochemical conversion of plant material in a non-oxidative atmosphere. Water hyacinth (Eichhornia crassipes) is a notable BC feedstock due to its rapid growth and high nutrient absorption capabilities, making it suitable for bio-nanofertilizer production. This study investigated the preparation of BC from water hyacinth (WH) dry leaf (D1)...
Tomato is one of the most important vegetable crops grown over the world because of its consistent high demand as sources of human nutrients and suitability for variety of uses in fresh and processed foods. However, between 55% and 72 % of tomatoes grown in Sub-saharan Africa perish before they can be consumed. This is due to high cost of conventional means of fresh produce sanitation which...
T.K. Asumadu1,2, K. Mensah-Darkwa1, E. Gikunoo1, D.E.P. Klenam3, M. Vandadi4, N. Rahbar4,5, S. Kwofie1 and W.O. Soboyejo5
1Department of Materials Engineering, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
2 Department of Materials Engineering, Sunyani Technical University, Box 206, Sunyani, Ghana.
3Academic Development Unit & School of Chemical and Metallurgical...
Addressing the critical challenges posed by climate change hinges on our ability to identify champion materials that can be used to construct sustainable and environmentally friendly devices. With this aim in mind, my research leverages leading-edge computational techniques and a multidisciplinary approach to understand the intricate behaviors exhibited by complex polycrystalline materials...
Nanostructured carbons constitute a large family of carbon allotropes with unique properties. This includes carbon nanotubes, carbon dots, graphene, onion-like carbons, hollow/carbon spheres etc. and are used in a wide range of applications such as energy, health, and water systems. While the production of structured nanocarbons is well documented in literature, the development of techniques...
Recent developments in novel ferroelectrics (e.g. based on HfO2, AlN and ZnO) with robust polarization reversal and processing that is compatible with complementary metal–oxide–semiconductors (CMOS) has provided new opportunities for integrated ferroelectrics. To understand the mechanisms that control and induce switchable states in these materials, we use a variety of electron microscopy...
AGROFRUIT PRODUCTIONAgrofruit production refers to the cultivation of fruit crops within agricultural system, integrating modern farming techniques and sustainable practices/activities. Agrofruit production plays crucial role in global economy, contributing to food security, nutrition, and livelihoods of many peoples.As the world faces challenges such as climate change, population growth, and...
YULAN CHEN1 and AMAL EL-GHAZALY2
1Materials Science and Engineering, Cornell University, Ithaca, New York, USA
2Electrical and Computer Engineering, Cornell University, Ithaca, New York, USA
Corresponding author: Amal El-Ghazaly (ase63@cornell.edu)
Keywords: magnetic nanoparticles, nanochains, self-assembly
Theme: Nanotechnology
The ideal single domain, isolated magnetic nanoparticle...
The integration of 3D printing technology with advanced materials like graphene presents a transformative approach to the fabrication of 3D functional devices for structural health monitoring (SHM). Graphene's exceptional mechanical, electrical, and thermal properties make it an ideal candidate for enhancing the sensitivity, durability, and multifunctionality of SHM devices. This study...
Abstract:
The rapid expansion of electric vehicle markets has intensified the need for cutting-edge battery materials, particularly solid-state electrolytes (SSEs), to drive the development of lithium metal batteries. Lithium SSEs offer the potential to enhance energy storage technology by improving specific energy, safety, and cost-efficiency. Despite this potential, achieving...
This talk will outline recent and ongoing efforts in the group focusing on data-driven design, computational study and experimental characterisation (performed via collaborative efforts) of melanins and melanin-inspired materials for biomedical devices or energy/information storage.
Innovative approaches to sustainable plastic waste management and circular economy
This research explores Plastica Innova Rwanda’s innovative approach to plastic waste management and its contributions to Rwanda's circular economy. In a country renowned for its environmental leadership, particularly in the ban on single-use plastics, Plastica Innova is pioneering sustainable methods to tackle...
High resolution imaging on CaF$_{2}$ (111) surface with Non-contact atomic force microscopy
B. KYEYUNE$^{1\#}$, R. OLBRICH$^1$, M. REICHLING$^1$, P. RAHE$^1$
$1$ Institut für Physik, Universität Osnabrück, Barbarastraße 7, 49076 Osnabrück, Germany
$\#$ bob.kyeyune@uos.de
Keywords: non-contact atomic force microscopy (NC-AFM), high resolution imaging, sublattice...
Southern University and A&M College (SU) in Baton Rouge, LA, in collaboration with Louisiana State University (LSU), established Phase II CREST Center for Next Generation Multifunctional Composites with National Science Foundation funding. CREST Center projects involves promoting advancements in multifunctional smart composites and related technology development, nanocomposites, novel...
The consumption of electronics has increased dramatically in the past decades and so has the amount of electronic waste (e-waste). The pressure of the electronics industry contributes to the scarcity of certain chemical elements such that their recycling through urban mining is imperative. Beyond dealing with the important and urgent matter of extracting critical, precious and strategic...
Understanding material degradation remains a key challenge in developing a sustainable circular economy for lithium-ion batteries, a critical component of modern energy storage systems. This study investigates the degradation mechanisms of lithium iron phosphate (LiFePO4) batteries used in hybrid vehicles, aiming to inform strategies for extending their useful life.
Using advanced materials...
Theme: Biomaterials & Materials for Health
Keywords: Suncare, skin cancer, emulsions, nanomaterials
Authors: AJ ADDAE ¹, YOGENDRA KUMAR MISHRA ², JOEY CHIFAMBA ³, PAUL S. WEISS ¹, JUSTIN CARAM ¹
Department of Chemistry and Biochemistry, University of California Los Angeles
Mads Clausen Institute, NanoSYD, University of Southern Denmark
Department of Pharmaceutical...
With the development of the Internet of Things (IoT), flexible and wearable devices have been extensively applied in the smart home, medical, and entertainment fields. The flexible wearable electronic devices have the unique advantages of flexibility, lightweight, and comfortability, which has triggered their applications in flexible sensors, artificial electronic skin and other wearable...
JUAMI-Charz is an initiative aimed at addressing the scarcity of accessible materials characterization equipment in the research community across Africa. By fostering a collaborative network among universities, JUAMI-Charz provides researchers with a streamlined tool for locating the nearest functional characterization equipment and fosters collaborations to enhance research quality. The...
Metallic glasses (MGs) are a class of amorphous metal materials with remarkable properties. By leveraging an abundance of uncoordinated active sites that can serve as catalytic regions, MGs can have high catalytic activity and long-term stability as compared to their crystalline counterparts. Conventional synthesis methods cannot produce nanosized MGs with precise control over composition,...
Optical wavefront shaping (WFS) involves the ability to manipulate light fields both spatially and temporally. It has largely been enabled by the availability of spatial light modulators (SLM). SLMs are used to create arbitrarily complex light fields and also provide means to manipulate the fundamental constituents of classical light or single photons, which obey the laws of quantum physics....
This talk will present the latest research from the Nanoscale Energy and Interfacial Transport Lab (NEITLab) on advanced thermal management solutions for high-power electronics. The discussion will begin with a detailed examination of a two-phase evaporative cooling system that dissipates heat fluxes exceeding 560 W/cm² using water. This system offers a robust solution for addressing the...
Conventional superabsorbent polymers used in biomedical applications, such as wound dressings, surgical pads and personal care products, pose environmental challenges due to their persistence as waste, accumulation in ecosystems and subsequent breakdown into microplastics with toxic residues. Also, the current limitation in the biomedical performance of conventional superabsorbent polymers...
Uranium dioxide is the main fuel used in light water reactors due to its relative radiation stability, high melting point, and chemical stability. However, fission gas release during reactor operations leads to degradation in thermal conductivity with an associated increase in thermal stresses and swelling. Promoting large grains during fuel sintering slows down fission gas diffusion to grain...
The world first laptop, produced in 1981, features 12.7 cm screen and mass of 11.1 kg, comparing it with the latest apple technology with a 15 inch screen and weighed 1.51 kg. This is due to the appetite for the latest gadgets which increases electronic waste. The electronic waste increases the need for dumping space with developed countries using poor communities as for new dumping sites. The...
Magnetic polymer materials (MPMs) are of immense importance in aerospace, biotechnology, communications, electronics, and national defense. Dispersion of magnetic nanoparticles and their interfacial adhesion with polymer matrix plays crucial role in determining the physical properties of MPMs. Presently, MPMs are synthesized through either of mechanical or ultrasonic dispersion of magnetic...
There are few, if any, economical, environmentally friendly, and sustainable electrification solutions for low population density, energy-poor regions of Africa. As of 2021, 770 million people live without access to electricity, and 77% of that statistic comes from Sub-Saharan Africa. The costs for electrification infrastructure for low-population density regions tend to be high because they...
Lithium-ion batteries (LiBs) are widely used for energy storage in different sectors, from portable electronic devices to electric vehicles and intermittent renewable energy (wind, solar) plants. LiBs use insertion cathode materials that can release and accommodate Li+ within their structure changes. The electronic conductivity of the insertion cathode materials is one of the fundamental...
Corresponding author: Martin M Thuo, mthuo@ncsu.edu
Key Words: liquid metal, metastability, sustainability, array fabrication, mixed metal
The inexorable progression of bigdata-based technologies (e.g. artificial intelligence/AI, machine learning/ML, Internet of Things/IoT etc.) is putting increasing demands for electronic devices with upgraded performance. Despite a world-wide calling for...
The National Science Foundation's Division of Materials Research (DMR) supports fundamental and interdisciplinary research in materials science, aiming to advance scientific knowledge and foster technological innovation. Through its National Facilities and Instrumentation (NaFI) portfolio, DMR supports US researchers to acquire or develop state-of-the-art instrumentation and infrastructure....
The healing power of heat also known as hyperthermia is recognized as the new and promising form of cancer therapy aside from surgery, chemotherapy, and irradiation. In magnetic hyperthermia, an oscillating magnetic field is used to induce hyperthermia. In this study, the thermographic analysis is applied to analyse the magnetic hyperthermia in water-based magnetic nanofluids containing citric...
Mortality related to waterborne illness in Sub-Saharan Africa is higher than anywhere else in the world. Of the deaths caused by waterborne pathogens, nanoviruses such as the rotavirus account for up to 30%. Commercial filter technologies do not filter to the nanometer scale, and the current technologies that are able to are energy intensive and therefore too expensive for general application....
Pseudocapacitors have the potential to achieve high energy and high power density simultaneously, a holy grail for electrochemical energy storage. MXene-based pseudocapacitors have made major progress in the last decade, achieving better energy and power density than carbon supercapacitors using the double-layer charge storage mechanism. However, one obstacle facing pseudocapacitors is their...
JONATHAN E. SPANIER1
1Drexel University (Departments of Mechanical Engineering and Mechanics, Materials Science & Engineering, Physics and Electrical Engineering, Philadelphia PA USA)
Corresponding author: Jonathan E. Spanier, spanier@drexel.edu
Keywords: ferroelectrics, tunable dielectrics, sensors, antiferroelectrics, thin films
Theme: (Sustainable Electronics: Parallel).
Advances...
This outreach project proposal is for examining the electric mobility prospects in Ethiopia by understanding the market dynamics in light of the recent government ban on importation of petrol and diesel cars. As the first and only country to impose such a ban Ethiopia targets increased use of electric vehicles and minimized petrol imports which are worth about 7.6 billion in 2023. Deducing...
While the current rechargeable battery technology is primarily based on Li-ion batteries, relying solely on Li-ion batteries puts considerable strain on the resources used in these batteries, for example, lithium and cobalt resources used in LiCoO2 cathodes. It is, therefore, essential to find alternatives to the Li-ion batteries. Among these alternatives, Mg-ion batteries are very promising,...
Cu doped CdO has been studied as thin film materials for solar cells and optoelectronic devices. In this study, low cost chemical bath technique is used to deposit Cu doped CdO on glass substrate. The structural properties of the thin film are investigated at different copper ion concentrations of 0.02M to 0.10M. XRD (X-ray diffraction) and SEM (scanning electron microscopy) showed that copper...
Columnar thin films (CTFs) are assemblies of parallel straight nanocolumns of nanoscale cross-sectional dimensions grown by physical vapor deposition on appropriate substrates. Sculptured thin films (STFs) are similar, but the columnar shape is architected for specific objectives. One objective was realizing polarization-universal bandgaps. We architected the columnar shape to fabricate...
SAMUEL SKHOSANE1*, NTHABISENG MALEDI2, MONNAMME TLOTLENG1,3, SISA PITYANA1,4 AND PAUL LEKOADI1
1Council for Scientific and Industrial Research (Manufacturing, Photonics Centre, Laser Enabled Manufacturing, Pretoria, South Africa
2 University of the Witwatersrand (School of Chemical and Metallurgical Engineering Johannesburg, South Africa)
3 North-West University (Material Science...
The current trend in various energy applications, ranging from batteries to electrolizers, lays in the control of structural, physicochemical and morphological properties of materials and their interfaces. During this presentation, recent scalable strategies for nanostructured materials synthesis, targeting energy and environmental applications will be discussed. Especially, we will focus on...
Abstract: The contemporary fad for green chemistry calls for the recycling and repurposing of biomaterials for novel uses and applications. In this context, the synthesis of nanoparticles using plant tissues has gained popularity due to the greater biocompatibility and enhanced environmental friendliness of biogenically-derived nanomaterials, compared to their chemically-synthesized...
Liquefaction-induced permanent horizontal ground deformations, known as lateral spreading, continue to threaten civil infrastructure in earthquake-prone regions. Despite recent advances, conventional predictive models of lateral spreading still contain significant uncertainties, with errors ranging from 50% to 200%. A major source of this variability stems from the lack of direct incorporation...
Neodymium-based permanent magnets (Nd2Fe14B) are the potential permanent magnets for use in various applications due to their high magnetic field strength and demagnetization resistance. Due to their exceptional magnetic properties, these magnets have various applications in wind turbines and electric vehicles. However, they suffer from low operating temperatures below 585 K and poor...
Nb50Ru50 is considered a potential high-temperature shape memory alloy (HTSMA) due to its transformation from the cubic B2 phase to the tetragonal L10 phase at 1100℃. This renders it a potential alloy for developing actuating devices for aeronautics applications. However, the second transformation from the L10 is still not well understood. Previously, some authors reported an L10→monoclinic...
The intercalation of cations into Ti3C2 Mxenes, a rapidly growing class of two-dimensional (2D) hydrophilic and layered metallic conducive materials, is extremely critical for their ability to store energy and deliver power. Cations, and water, intercalated into MXene interlayers affect the interlayer spacing, the dynamics of confined water, and their electrical conductivity as well as their...
Utilization of Bio-Based By-Products for Low Carbon Concrete in a Sustainable Circular Economy
KABIBI KAMASHANJU1, WOLFRAM SCHMIDT1
1Bundesanstalt für Materialforschung und -prüfung, Division 7.4, Berlin, Germany
Wolfram Schmidt: wolfram.schmidt@bam.de
Keywords: Bio-based materials, polysaccharides, admixtures, circular economy
Theme: Materials for CONSTRUCTION/BUILDING...
The escalating threat of counterfeiting in supply chains necessitates advanced product authentication and traceability. Current Physical Unclonable Functions (PUFs) used for hardware security, leverage manufacturing variations but remain inherently static and vulnerable to sophisticated duplication methods. This work introduces a novel approach to supply chain security by deploying kinetics of...
Simulating solid–liquid interfaces under applied voltage is fundamental to understanding the charge capacity and redox activity of electrochemical systems. Current models provide effective approaches for studying electrodes and electrolytes in isolation. Yet predicting the voltage-dependent thermodynamic stability of solid–liquid interfaces and the lifetime of transient surface intermediates...
Cryogenic electron microscopy is seeing increasing use in describing solid-liquid interfaces, specifically the solid-electrolyte interphase in battery systems. We have employed cryogenic focused ion beam milling (FIB) in a plasma-focused ion beam/scanning electron microscope system to prepare sensitive lithium metal specimens, allowing us to assess potential ion beam damage, understand the...
Ordered alloys based on manganese-platinum (Mn-Pt) are currently receiving increased attention, mostly in the development of magnetic materials for data storage applications. In particular, Mn-Pt-Co appears to be one of the most promising alloys due to its ferromagnetic behaviour at 0 K. There have been numerous efforts to improve the ferromagnetic properties of MnPt through alloying with...
The large surface area available for pollutant adsorption and the low charge recombination exhibited by carbon-based nanocomposites enhance the performance efficiency of photocatalysts. In this study, the performance of ZnO/GO and ZnO/g-C3N4 nanocomposites in the photocatalytic degradation of acetaminophen under UV irradiation was compared. The nanocomposites were synthesized using a simple...
Advanced electrode materials must be developed to meet the increasing demand for energy. Carbon-based materials are the most versatile materials in energy storage and generation. These materials are used in supercapacitors which are energy storage devices with high specific power and low specific energy. Thus, it is necessary and even desirable to produce increasingly enhanced carbon materials...
The sequestration of heavy metals from multicomponent sorption media has become critical due to the noxious effects of heavy metals on the natural environment and subsequently on human health as well as all life forms. The abatement of heavy metals using bio-adsorbents is one of the efficient and affordable approaches for treating water and wastewater. In this study, the interactive effect of...
Solid-state electrolytes are crucial for next-generation batteries. Their chemical compatibility with high-capacity anodes such as metallic Li and Na will lead to high energy density and improve battery safety. Complex hydrides such as LiBH4, NaBH4, and Li2B11H12, have recently gained attention as solid-state electrolytes due to their attractive ionic conductivity and good...
An ab initio study of Zintl Na2CuP ternary semiconductor compounds was carried out by applying first-principles methods to calculate the structural, electronic, elastic, mechanical, and optical properties using generalised gradient approximation (GGA) and metaGGA exchange-correlation functionals. The bandgap was determined to be 0.7523 eV and 0.7848 eV using GGA with Wu-Cohen and...
Biosynthesis of functional nanomaterials from metallic salts using polyphenolic components of plant extracts provides an ecofriendly, easily scalable one pot fabrication of novel biomaterials. Among the nanomaterials that can be obtained through green synthesis, ZnONPs have shown considerable potential in the management of diabetes which is a worldwide scourge affecting more than 50% of all...
Composite flour/ starch blends were made by supplementing wheat flour (WF) with chemically modified African yam bean starch (AYBS) and Cassava starch (CS) after the starch were produced from the cleaned seeds and roots using hammer milling system and modified using acetylation method (sodium acetate). The blends (WF/AYBS/CS 80/10/10, 80.83/10.83/8.33, 85/10/5, 82.5/10/7.5, 82.5/12.5/5,...
This study assessed glass-cladding and bioclimatic design application in Nigerian buildings towards enhancing energy efficiency and occupancy level. Glass-cladding, known for its aesthetic appeal and natural lighting benefits, was juxtaposed with bioclimatic design principles that prioritize environmental harmony and energy conservation. Data were collected through field surveys, energy...
On applying a small bias force, non-equilibrium systems may respond in paradoxical ways such as with giant negative mobility (GNM) – a large net drift opposite to the applied bias, or giant positive mobility GPM) – an anomalously large drift in the same direction as the applied bias. Such behaviors have been extensively studied in idealized models of externally driven passive inertial...
Bio-synthesized calcium carbonate nanoparticles produced via green chemistry offer environmental friendliness, minimal toxicity, biological compatibility, and sedate biodegradability, thereby enhancing crop production and addressing poverty challenges. This study assessed the use of bioinspired CaCO3 nanoparticles as nanofertilizers on the growth, gas exchange, yield parameters of tomatoes and...
Hello good afternoon. Attached is my abstract for your necessary action. Thank you
ABSTRACT
Silver nanoparticles (AgNPs) have antibacterial and antimicrobial properties which make them useful in healthcare delivery, the fields of medicine and most recently by food packaging industries. AgNPs have also been infused into films used for making polyethylene containers for packaging foods and fruit juice resulting in reduced pasteurisation temperatures, and shielding them from...
This study investigates the biocorrosion response of spark plasma sintered biomedical-grade titanium (Ti6Al4V) reinforced with varying amounts of zirconia (ZrO2) in 0.9% NaCl and Hanks’ solutions. The objective was to evaluate how different zirconia concentrations affect the corrosion resistance of titanium alloys under simulated physiological conditions. To characterize the sintered...
The emergence of drug resistant disease strains has severely thwarted global efforts to eliminate diseases such as tuberculosis (TB). There is an urgent need for newer antimicrobials with superior modes of action. This study proposes to amplify the antimicrobial properties of Elephantorrhiza elephantina (E. elephantina), a medicinal plant traditionally used in the treatment of TB in...
A novel plant-mediated silver-titania supported on sodium functionalized bentonite, Ag-TiO2/Na-BNT nanocomposite was synthesized via a combined sol-gel-wet impregnation route. The as-synthesised nanocomposite was characterized using different techniques of X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), UV-Vis spectroscopy, Scanning electron microscopy-energy dispersive x-ray SEM/EDX...
CdSe Quantum dots with Benzyl Viologen Dichloride as a Ligand for Photodiode Application
OLA ELKALASHY 1, AHMED EL-HAMALAWY 2, ABDEL NASER AL-KAMEL 1, MOHAMED SHAFIK KHALIL 1, AFAF EL-SAYED 3,4,5, SHAIMAA A. MOHAMED 6, 7
- Photometry Department, National Institute of Standards, 12211 Giza, Egypt.
- Menoufia University, Faculty of Science, Department of Physics, Shebin El Kom,...
Abstract
Heavy metals are regarded as one of notorious pollutants in water bodies, adversely affecting human health by causing various severe diseases after passing down to the food chain. The rise in aqueous environmental pollution forces researchers to come up with biodegradable materials for remediation purposes. Therefore, there is an increasing growth in extensive use of cellulose...
This research project aims to address challenges in environmental safety specifically to
promote the use of organic methods in pharmaceutical industries, agricultural industries
and food industries in Botswana. Experimental set ups, careful observation of the
patterns of algal blooms in the local environment, revising mycology journal articles and
textbooks, as well as participating in...
Two Kenyan bentonite samples (K1&K2) were characterized before and after modifying them into organoclay. K1 was obtained from a quarry in Olturoto Village of Kajiado County while K2 was donated by Athyplast Enterprises Ltd, Kitengela. For comparison, a known bentonite sample rich in montmorillonite (US) was procured from Sigma Aldrich (USA). Dimethyl-dioctadecyl-ammonium chloride (DODMA)...
Two raw Kenyan bentonite samples (K1 and K2) were characterized before and after treating them with a surfactant. K1 was obtained from a quarry in Olturoto Village of Kajiado County, while Athyplast Enterprises Ltd, Kitengela, donated K2. A bentonite sample rich in montmorillonite (labelled US) was procured from Sigma Aldrich (Product ID 682659) for comparison purposes....
The growing demand for clean and sustainable water resources has driven extensive research in the field of desalination technologies. This current study explores the potential of using discarded cigarette butts (CBs) as a raw polymer material for phase-inverted cellulose acetate-silver/copper oxide (CA-Ag/CuO) reverse osmosis membranes for seawater desalination. The incorporated Ag/CuO...
Purpose of the project
PROJECT PROGRESS
Key Activities Delivered
Achievements and Impact
Collaborations/Partnerships/Networks
Objectives
Fertilizer which:
Improve agricultural sustainability.
Environmental friendly.
Help a plant to boost its nutrient naturally.
Canbe produced in one's yard.
Methodology
Observation and through research
Result
Improve agricultural sustainability.
Improve soil texture.
Environmental friendly.
Plants boost its nutrient naturally.
It can be produced...
CVD graphene electrodes for photo-detection
AFRAH BARDAOUI1*, RABIAA ELKAROUS1, JÉRÔME BORME2, NABIL SGHAIER1, PEDRO ALPUIM2, RADHOUANE CHTOUROU1
1 Laboratory of Nanomaterials and Systems for Renewable Energies, Research and Technology Centre of Energy, Borj Cedria Science and Technology Park, 2050 Hammam-Lif, Tunisia
2 2D Materials and Devices Group, International Iberian Nanotechnology...
Hydrogen (H2), while abundant on Earth, is primarily found within compounds like H2O. To harness it for use as fuel, it needs to be separated into pure hydrogen, and various methods can achieve this, including water electrolysis. Hydrogen production's environmental impact and energy efficiency depend on the chosen method, which can involve fossil fuels, biomass, or clean processes like...
Defect emissions of Cd0.015Mg0.10Zn0.885O (CMZO) thin film with a broad yellow emission are discussed. The self-textured growth and the texture fraction of 95.8% for (002) peak (TF(002)) of the (CMZO) thin films orientation along the c-axis is deposited on Si substrate using radio frequency (RF) magnetron sputtering. The crystal structure of the thin film and their crystallographic parameters...
Abstract
Defect emissions of Cd0.015Mg0.10Zn0.885O (CMZO) thin film with a broad yellow emission are discussed. The self-textured growth and the texture fraction of 95.8% for (002) peak (TF(002)) of the (CMZO) thin films orientation along the c-axis is deposited on Si substrate using radio frequency (RF) magnetron sputtering. The crystal structure of the thin film and their crystallographic...
MUSA RUNDE
National Open University of Nigeria, Department of Chemistry, Abuja, Nigeria
Corresponding Author: Musa Runde; rmusa@noun.edu.ng
Key words; Absorbance, Fatty acids, Moisturizer, Sunscreen, and Sun Protection Factor (SPF)
Theme: Biomaterials and Materials for HEALTH
The study provides valuable insights into the potential cosmetic applications of various oil extracts, emphasizing...
In this presentation, I will discuss the development of a label-free gold nanoparticles-based aptasensor for the detection of a SARS-COV-2 biomarker. I will outline the principle of the developed aptasensor and the results from the optical analysis, sensitivity analysis and limit of detection. I will use diagrams, graphs and images to illustrate the key concepts. The main conclusion will focus...
The increasing interest in natural polymers has driven research into hydrogels due to their unique properties and potential applications across various industries. This study investigates the cross-linking of schizophyllan hydrogel, a natural β-glucan polysaccharide, with nanocellulose extracted from hemp hurd biomass. Schizophyllan hydrogels exhibit high water retention, viscoelastic...
Freshwater contamination by heavy metals poses significant threats to human health and the ecosystem. This research explores the use of corncob-based biochar-cellulosic matrix for remediation of heavy metals from wastewater. Biochar-cellulosic composites were prepared in varying ratios (0:1, 1:2, 2:3, and 1:1) of biochar to cellulose. The physicochemical properties of wastewater and heavy...
The enormous consumption of raw materials by the construction industry is not only unsustainable in terms of decline in natural reserve, but also lead to environmental degradation, pollution and increased carbon footprints. One of the mitigating ways is the application of circular economy to the agricultural and industrial by-products. In this study, the physio-chemical properties of...
Super absorbent polymers (SAPs) are a class of hydrogels that can absorb and retain large amounts of liquid relative to their mass, making them valuable for personal care products and agricultural applications. However, the reliance on synthetic polymers for SAP production poses significant environmental challenges due to their non-renewability and non-biodegradability. To address these issues...
Water (Fresh) is necessary for the survival of all living organisms on Earth. Human’s body is made up of about 60% water hence, the reason why we cannot survive more than a few days without water. Among all the sources of freshwater (ponds, lakes, rainfall, river, streams and groundwater), groundwater is regarded as being probably the most safe source of fresh water for human consumption....
**Keywords: ** Density functional theory (DFT), Phase stability, Elastic properties, Martensitic phase transformation
**Abstract: ** There is a growing need for intelligent materials that can function proficiently beyond TiNi (Nitinol) shape memory alloys (SMAs) operational limitations. Apart from its distinctive shape memory effect and super elasticity. Nitinol undergoes martensitic phase...
The efficacy of anacardium occidentale (cashew leaf) extract in mild steel corrosion failure attenuation in Salt Water and Marine environment is presented. The thrust was to find out how successfully or otherwise, the unique active ingredient in cashew leaf called Anacardium occidentale reduced mild steel corrosion failure in marine environments. Fresh lush green Cashew leaves were harvested...
For a long time in Burkina Faso, natural laterites had the geotechnical properties required to be used as layer base in road construction. Nowadays, after their deterioration and also the high traffic, they no longer meet these needs, requiring the use of conventional mineral binders expensive currently to stabilize them. The objective of this study is to use a mixture of local materials (tuff...
Abstract
Carbon dioxide (CO2) valorization via bicarbonate electrolysis (DCE) is a promising and emerging technology geared towards ‘green’ chemical synthesis. The development of active and facile catalyst layers is vital for establishing efficient electrolyzers. Bimetallic (Zn(x)/Cu(100-x)) and bimetallic oxide (ZnOx/CuO(100-x)) catalyst layers with different ratios of the respective...
The widespread adoption of renewable energy demands reliable energy storage solutions, which are currently held back by issues related to performance, cost, and/or ease of use. To tackle these issues, researchers have explored two-dimensional (2D) materials as cost-effective, high-performance electrocatalysts and electrode materials. Among these 2D materials, MXenes, a distinct category of...
Electrochemical reduction of CO2 is an emerging and current issue for its conversion in to valuable product upon minimization of its atmospheric level for contribution of maintaining within the range of permissible limit. Among plenty of electro-catalysts gold and copper are efficient and effective catalysts, which are synthesized and applicable for this research work. The two metal catalysts...
Titanium dioxide (TiO2) has attracted a lot of interest as a very potent photocatalyst for the degradation of organic contaminants in wastewater, especially in the water treatment process used in oilfields. This review discusses the fundamental mechanisms of TiO2 photocatalysis, emphasizing its ability to generate reactive oxygen species (ROS) upon UV light irradiation, which facilitates the...
A clean and sustainable energy source is essential to meet the growing global energy demand and mitigate carbon-related environmental issues. Semiconductor-based photocatalysis has garnered significant attention for its potential to address these challenges. In a semiconductor photocatalytic system, photo-induced electron-hole pairs are generated when a photocatalyst is illuminated by light...
Enhancing Sustainable Agriculture Practices Through Innovative Materials
In the pursuit of sustainable agriculture, the role of innovative materials is paramount. This study explores the impact of novel materials on enhancing agricultural practices for improved crop yields and environmental sustainability. By integrating cutting-edge materials into farming techniques, we aim to...
Sanitary pads are vital for feminine hygiene, and there is growing interest in developing affordable and eco-friendly alternatives. Among various materials explored for this purpose, plantain fibers have received limited attention. This study aims to fill this research gap by investigating the use of plantain fibers extracted from waste pseudo-stems as absorbent cores for sanitary pads. The...
This paper aims to assess the suitability of various Moroccan clay materials for application in ceramic tile production. Six clay samples (S1–S6) sourced from cities including Fez-Meknes, Safi, Berrechid, and Benslimane were collected and subjected to comprehensive characterization to elucidate their chemical and mineralogical composition, as well as their morphological and thermal behavior....
Clinker reduction is the most efficient de-carbonization pathway for the cement industry. Kaolinitic clays are widely available worldwide and have shown great potential as a Supplementary Cementitious Material (SCM) when calcined at 800-850°C, enhancing their reactivity. The key challenge facing sustainable cement production is the reduction of the clinker content. Advances in Limestone...
This study investigate the compression properties of quenched Ti-Mo alloys for potential use in load bearing implants. Three binary alloys, namely, Ti-15Mo,Ti-17Mo and Ti-20Mo were designed using theoretical predictive methods such as the Molybdenum equivalence (Moeq), the electron to atom ratio (e/a) and the d electron methods. These alloys were fabricated using the ultrasonic-based machine...
HENRIETTA IJEOMA KELLE1·EMEKA CHIMA OGOKO1·OLUMUYIWA AKINTOLA1· NNABUK OKON EDDY2
1 National Open University of Nigeria (Department of Chemistry/Faculty of Sciences, Abuja, Nigeria)
2 University of Nigeria, Nsukka (Department of Pure and Industrial Chemistry/Faculty of Physical Sciences, Enugu State, Nigeria)
Corresponding author: Henrietta Ijeoma Kelle ...
Due to their attractive combination of properties such as low elastic modulus, good formability, low density, excellent corrosion resistance and biocompatibility, nickel-free metastable β-Ti alloys are expected to be key in manufacturing the next generation of biomedical implants. Consequently, research and development on β-Ti alloys bearing only non-toxic elements has increased drastically...
The mounting challenge of food waste disposal in African urban centers poses a critical environmental dilemma while revealing opportunities for transformative innovation. This research upcycles Nairobi’s food processing side streams into high-value composite materials contributing to sustainable development goals and circular economy principles.
Composite boards are fabricated by integrating...
The mounting challenge of food waste disposal in African urban centers poses a critical environmental dilemma while revealing opportunities for transformative innovation. This research upcycles Nairobi’s food processing side streams into high-value composite materials contributing to sustainable development goals and circular economy principles.
Composite boards are fabricated by integrating...
Chickpea is mostly grown in nutrient-deficient soils where supplies are made through conventional fertilizers which present certain environmental issues such as soil degradation, and water and soil contamination. Thus, the use of other technologies such as nanotechnology is being implemented as a remedy to achieve sustainable agriculture without altering the environment. Furthermore, it helps...
This study explored the structural, electronic, elastic, optical, thermdynamic, and thermoeletric properties of CoTaSi half-Heusler compound using first-principles density functional approach. Generalized Gradient Approximation (GGA) and projected augmented planewave pseudopotential method of Perdew-Burke-Ernzerhof (PBE) exchange-correlation functional implemented in Quantum Espresso code...
Understanding the flow dynamics and heat transfer of magnetohydrodynamic fluids with dust particles is critical in many engineering processes, such as material processing, environmental engineering, polymer extrusion, metal forming, pollution control, energy transfer, and so on. This study thus delves into the transport phenomenon of complex fluid-solid systems in order to optimize heat...
After extraction of cellulose from sugarcane bagasse (SCB) and its subsequent conversion to cellobiose, the biopolymers were activated, via trans-esterification reaction with palm kernel oil (PKO). The trans-esterification process gave rise to a biopolymer based material bearing several functional groups, prominent amongst which is the carbonyl functionality (CO) of the PKO trans-esterified...
This study presents the synthesis of an environmentally benign single-layered spectrally selective Ag/NiO thin film nanocomposite absorber. The researchers used various techniques including Rutherford backscattering spectroscopy, X-ray diffraction, SEM, and AFM to examine the effects of plasmonic Ag concentration on the nanocomposites' structural composition, and surface morphology. The...
Halide perovskite materials have gained enormous attention for their semiconducting properties, higher power conversion efficiency and potential applications in a wide range of fields of study, along with their two key limitations: stability and toxicity. Despite great progress made on halide perovskites and many promising research developments, the issues of stability and toxicity have not...
This study evaluated the potential for electricity generation from Municipal Solid Waste (MSW) in Edo State Metropolitan City, leveraging waste-to-energy (WtE) technologies. To achieve this, 100 kg of MSW were collected from ten selected sites in Benin metropolis and divided into eight components. Data for estimating the total volume of MSW were gathered through field studies and the Edo State...
Over the decades, numerous successful techniques have been developed for the engineering of nanostructures in the form of nanofibers, nanoparticles with various morphologies and hybrid systems. Materials engineering and design are at the center of this success. We first developed nanofibrous scaffolds with multiple functionalities for tissue engineering applications addressing infected wounds...
The global shift towards sustainable bioprocessing technologies has sparked significant interest in valorising agricultural waste, particularly hemp waste, for renewable bioplastic production. In this study, we focus on the concurrent hydrolysis of cellulose into fermentable sugars and fermentation to polyhydroxybutyrate (PHB) a kind of polyhydroxyalkanoate (PHA) from pretreated hemp hurds...
Green energy is vital at all levels of agriculture including production of inputs, processing and transporting of the products, and even marketing to final consumption. Most time, fossil fuel generators are used to power agriculture equipment which leads to massive emissions of greenhouse gases into the atmosphere. The Sustainable Development Goals (SDG-NO.7) borders on clean energy that many...
This work explored the application of two techniques for the synthesis of zeolite A from Aloji Nigerian kaolin for the deodourisation of poultry litter. Refined Aloji kaolin was used as a cheap precursor for zeolite A synthesis via hydrothermal and microwave techniques. The effect of alkalinity (5,6.5,8 M), metakaolinization temperature (600, 725, 850 ˚C), crystallization temperature (80,...
In this work, peanut shell waste-activated carbons and its composites were explored as potential electrode materials for supercapacitor applications. This study reports the enhancement of electrochemical performance of the peanut shell waste-activated carbons (PAC) through (i) a pre-carbonization followed by chemical activation (PAC), (ii) heteroatom-doping with nitrogen (NPAC). Their...
Innovation in Science and Technology is at the core of long-term economic development. The primary focus of economists has been on its impact on productivity. In this lecture, I explain the potential of scientific innovation to profoundly shape governments and the social infrastructure of African countries, which is the most effective mechanism for sustained economic prosperity. For...
This paper underlines the latest approach of preparing nitrogen carbon nanoparticles fused on zinc oxide nanoparticle nanocomposite (N-CNPs/ZnONP nanocomposite) for the uptake of copper ions (Cu2+) from wastewater using a sol gel method. The metal loaded adsorbent was then applied in the latent fingerprint application. The N-CNPs/ZnONP nanocomposite proved to be a good sorbent for the optimal...
This study developed nutritious high-fiber sustainable food systems and waste reduction through agricultural by-products in Edo State, Nigeria. A three-component mixture design comprising of orange pomace (5-30%), soy meal (10-80%), and wheat bran (10-70%), with varying proportions were extruded under controlled conditions to optimize nutritional content and sensory qualities. The study...
Bimetal nanoparticles have some interesting characteristics not found in single-metal nanoparticles due to the complementary effects of their various component metals. It is essential to precisely replace the metal atom in matrix nanoparticles with one or more foreign atoms in order to comprehend the function of the doped metal element in bimetal nanoparticles. This will open up new avenues...
This paper is a literature review aiming to critic the documented findings on how micro-organisms aided spodumene concentration from hard rocks can be carried out not only efficiently but also in environmentally and friendly process. The paper evaluates the use of microorganisms to enhance the floatability of spodumene with an efficient management of the gangue material. With particular...
Investigating the way in which therapeutic drugs interact with engineered nanoparticles (ENPs) is crucial for understanding the fate and behaviour of engineered nanoparticles in the human body. After the outbreak of COVID-19, drugs such as dexamethasone and hydroxychloroquine were suggested as viable candidates to combat the adverse effects of the disease [1]. In this study,...
Aluminum alloys, such as AA6063, are renowned for their excellent corrosion resistance; however, they face limitations in construction and building applications owing to their relatively low mechanical strength. Beans, an essential source of proteins, generate substantial pod residues that contribute to environmental pollution. Although different types of agro-waste residues have been explored...
Abstract
By 2030, it is anticipated that approximately 21.7 million new cancer cases will be diagnosed annually on a global scale (Ovais et al., 2017). Colon cancer accounts for over 8% of cancer-related deaths worldwide (Ma et al., 2018). Conventional treatments such as chemotherapy, surgery, and radiation, often in combination, face significant challenges including lack of specificity and...
The United Nations Sustainable Development Goal (SDGs) No. 7 says, ‘Ensure Access To Affordable, Reliable, Sustainable And Modern Energy For All’. Lithium is a key mineral in addressing the energy challenges faced across the world, and Zimbabwe is endowed with the largest lithium reserves/deposits in Africa. Lithium exists as pegmatite, petalite and spodumene ore in Zimbabwe. This is a...
Lithium is a strategic and critical mineral in the global transition to clean energy and in addressing the energy challenges faced across the world. Zimbabwe is endowed with the largest lithium reserves/deposits in Africa. The extraction of lithium from its ores entails acid or alkaline leaching followed by a series of time- and raw material-consuming concentration and purification steps to...
This research explores the upcycling of mango seed coats and
macadamia nut shell waste as natural fibre reinforcements in
biodegradable plastic-based composite filaments for structural
applications in the energy sector. The study investigates the integration
of these agricultural waste fibres into a polylactic acid (PLA) matrix to
produce environmentally friendly composite filaments with...
High temperature shape-memory alloys (HTSMAs) have received increased attention as the demand for lightweight, compact, and efficient actuators has grown in recent years. These materials are used in various sectors such, energy, aerospace and engineering, due to their unique properties shape memory and pseudoelasticity which occurs as a result of phase transformation. Most desirable HTSMAs...
Ammonia is a crucial compound for the production of fertilizers and several important chemical feedstocks. It has also recently been receiving impressive attention as an energy carrier due to its high hydrogen content and zero carbon emissions when used in fuel cells. There has been a growing interest in developing a more efficient method to produce ammonia because the conventional Haber-Bosch...
The standard temperature and pressure (298K and 1bar) are only particular conditions in the nature that surrounds us. Indeed, areas of high temperature and pressure such as the ocean floor,hydrothermal sources, planetary interiors, etc. exist around us. The study of the effects of temperature and pressure is therefore important and essential for a complete understanding of living organisms...
The global rise in antidepressant consumption underscores the urgent need for effective systems
to detect, capture, and treat bioactive pollutants. Venlafaxine (VEN), a widely prescribed
antidepressant, and its transformation products (N-VEN, O-VEN, and O-N-VEN) are frequently
detected in wastewater, raising significant environmental concerns due to their...
Green synthesis has gained extensive attention in materials science as a reliable, sustainable, and eco-friendly approach using natural resources such as plant extracts to synthesize a wide range of nanomaterials including metal oxides nanomaterials, hybrid materials, and bioinspired materials, minimizing the use of hazardous chemicals and energy. However, the synthesized nanoparticles exhibit...
Nitridation Temperature Effect on Carbon Vanadium
Oxynitrides for a Symmetric Supercapacitor
Ndeye M. Ndiaye1#, Ndeye F. Sylla1, Balla D. Ngom2, Bridget K. Mutuma1, Julien K. Dangbegnon1, Sekhar C. Ray3 and Ncholu Manyala1
1 Laboratoire de Photonique Quantique d’Energie et de NanoFabrication, Groupe de Physique du Solide et Science des Materiaux, Departement de Physique FST, BP 5005...
The research aims to improve the hardness of high chrome grinding balls by development of heat treatment techniques. The samples were heat treated by forced air quenching and tempered. The optical microscopy reveals that the microstructure of as cast high Chromium grinding balls contain eutectic carbide and pearlite structure, the hardened balls contain martensite and secondary carbides and...
This study investigated the possibility of replacing cement with various amounts of Cow-bone Ash while considering cost lowering for construction materials. The best quantity to be replaced for optimum mechanical properties was deduced. The result can enhance environmental sustainability by converting the waste agro Cow-Bone waste to wealth.
See attachment
GEBREKIDAN GEBRESILASSIE ESHETU,1 VIVIANE MACCIO-FIGGEMEIER,1 MICHEL ARMAND,2 EGBERT FIGGEMEIER,1,3
1RWTH Aachen University (Institute of Power Electronics and Electric Drives, Aachen, Germany)
2CIC energiGUNE (Electrochemical Energy Storage, Vitoria-Gasteiz, Spain)
3Helmholtz Institute Münster (HI MS), IEK-12, Forschungszentrum, Jülich, Münster, Germany
Corresponding Author: ...
This study evaluated the effect of ginger starch (S) on the physicochemical and thermal attributes of gum Arabic (GA) hybrid biocomposites for postharvest storage. Two composite blends of GA and S at [GA-S 96.7:3.3% (v/v)] and [GA-S 93.3:6.7% (v/v)] concentrations were developed and examined. Standard techniques were used to analyze moisture content, thickness, transparency, water solubility...
Lead laden cupels are being produced in tonnes by mining firms and dumped into the environment on a daily basis. Disposal of these used cupels present a long term environmental challenge due to the high levels of Pb. In this work, a circular economy oriented approach on the recovery of lead from waste cupels is reported. In the proposed lead recovery protocol, lead was leached at room...
The safety of food and water, particularly in low-income countries (LICs), remains a critical concern due to disease outbreaks such as the recent South African cholera epidemic, which originated from Malawi. The cholera outbreak caused by Vibrio cholerae spread through contaminated water consumption and resulted in significant fatalities in the SADC region of Africa. The current conventional...
Gold nanoparticles (AuNPs) have shown great potential in wound healing; however, their chemical and physical
synthesis were demonstrated to be toxic. Synthesis of AuNPs using plants and their derivatives such as red wine
(RW) is a less toxic, and cost-effective alternative. Three RW extracts (RW-Es) were used for synthesis of
RW-AuNPs; by varying temperature, pH, concentrations of RW-Es...
The improper disposal of wastewater from textile industries is a critical global concern that adversely affects both the environment and human health. While these industries play a vital role in the global economy, they are significant contributors to pollution, particularly in regions like China and South Africa. The textile sector generates approximately 70 million tons of synthetic dyes...
Water, also called the molecule of life is the most abundant polyatomic molecule in the galaxy and the 3rd most abundant molecule in the Interstellar Medium (ISM) after CO and H2. In the recent years, mixed H2O–HCN heterodimer have attracted a great number of experimentalists and theorists alike with a special interest on its structure and spectroscopy but no complete quantum calculations of...
The dispersion of silica fume (SF) plays a crucial role in low water-to-binder concrete mixtures such as High and Ultra High-performance concretes (HPC and UHPC). At high concentrations (>10 wt%), dispersing SF can prove to be extremely challenging with conventional super-plasticizers. In this work, we evaluate the production of UHPC with SF@PEG which are SF particles with a small layer of...
Keywords: Emerging Technologies, Artificial Intelligence
Theme: Advanced Materials (New Devices, Quantum Materials, OptoElectronic Materials)
Introduction: The pharmacy profession is undergoing a trans-formative phase driven by shifting paradigms and propelled by emerging technologies including Artificial Intelligence and Robotics. This abstract emphasizes the importance of...
Pyrroles, thiophenes, and furans are key building blocks in conjugated poly(heterocycles), which are promising organic conductors for various applications. The initial step in their electropolymerization involves the oxidation of β-substituted pyrroles, thiophenes, and furans [1,2]. Important electrochemical parameters like function coefficient (Fn), atomic charge distribution, ionization...
The principal challenge in organic-inorganic perovskite-based photovoltaics (PVs) arises from significant losses due to trap-assisted nonradiative recombination and charge transfer inhibition at the interface between the perovskite absorber and the charge transport layers. These issues critically undermine the photoconversion efficiency (PCE) and long-term stability of the devices. In this...
A structurally modified cathode material for a lithium ion battery is reported in this study. The high-voltage spinel LiMn1.5Ni0.5O4 (LMNO) is highly regarded as a promising energy storage material for the next generation of lithium batteries due to its ability to achieve high energy densities. However, the inadequate performance of LMNO remains a hurdle impeding the technology's practical...
This study investigates the structural and functional properties of copper oxide (CuO) doped with silver (Ag) and co-doped with chromium ions (Cr³⁺) for potential gas sensor applications. The synthesis of CuO:Ag and CuO:Ag,Cr³⁺ nanostructures was achieved through a sol-gel method, followed by annealing at various temperatures to optimize their crystalline quality and morphological...
In this work, we report a numerical investigation on the performance of Copper-Zin-Tin-Sulfur (CZTS)-based heterojunction solar cell using the solar cell capacitance simulator in 1D (SCAPS-1D) software program. This study aims to obtain best performances of CZTS -based devices with a thin-film absorber layer produced by the electrodeposition method. Initially, we study the effects of series...
3D mixed perovskites have achieved substantial successes in boosting solar cell efficiency, but the complicated perovskite crystal formation pathway remains mysterious. Detailed crystallization kinetics of mixed perovskites FA0.83MA0.17Pb(I0.83Br0.17)3 with addition of Cs+ to form a triple cation perovskite (3-CAT) in comparison with the perovskite building block MAPbI3 (MAPI) by static...
Sodium-ion batteries are gaining recognition as promising alternatives to lithium-ion batteries. Due to its electrochemical performance, hard carbon is currently the preferred anode material for sodium ion batteries. Carbon materials with low dimensions, ordered nanostructures, and large surface areas with potential application as electrode materials maybe produced via hydrothermal...
This study guide to improve material performance for it long term use.
The quest for alternative sustainable materials for water treatment has significantly increased due to the adverse health and environmental implications associated with the fabrication process of most conventional materials. Moreover, ensuring sustainable material use in water treatment directly responds to the call for sustainable water management stipulated in the United Nations Sustainable...
Keywords: Quantum materials, magnetism, synchrotron X-ray diffraction, thin-film synthesis
Theme: ADVANCED Materials (New Devices, Quantum Materials, OptoElectronic Materials)
Transition metal oxides (TMOs) exhibit a wide range of physical properties including high-temperature superconductivity, ferroelectricity, ferromagnetism and metal-insulator transitions. While these physical properties...
Water contamination by industrial effluents containing dyes is prevalent in urban industrialised areas. The study presents an investigation results on degradation of bromocresol green dye using calcium oxide nanoparticles synthesized from gigas shells as a photocatalyst. The catalyst was synthesized through a sol–gel process involving the conversion of the CaCO3 in the shells to CaO...
The adsorptive behaviour of Iron-Tungstate (FeWO4) nanoparticles for the removal of copper, nickel, cadmium, chromium and lead from hospital wastewater was investigated. FeWO4 nanoparticles were synthesised by a simple sol-gel technique using sodium tungstate dihydrate, iron(II) sulfate and distiled water as solvent based on response surface methodology experimental design. The produced...
This research explores the influence of hematite seed layer precursor concentrations and co-dopants on the structural, optical, and photoelectrochemical (PEC) properties of hematite nanorods. Seed layers were prepared using various concentrations (0.05–0.13 mM) of FeCl₃·6H₂O, affecting nanorod alignment and morphology. The lowest precursor concentration (0.05 mM) resulted in the highest...
Bioactive glass (BG) is one of the most remarkable biomaterials in the field of biomedical applications due to its properties such as bioactivity, biodegradability, biocompatibility and etc., which are mainly used for the applications of bone implants, dermal fillers and drug releasing carriers. Bioactive glass materials with a porous spherical structure are the most predominant materials in...
Abstract:
Significant environmental problems arise when sludge from industrial water effluent treatment is disposed away, hence economical and sustainable management strategies must be developed. This study aims to simultaneously solve the problem of sludge disposal and investigate value-added applications of the generated material by presenting a novel approach for synthesizing nano-zeolite...
In the present study, silver nanoparticles were synthesized using Erythrina abyssinica aerial parts as both reducing and capping agents. Three extracts were obtained from the plant using methanol, acetone and water. Successful biosynthesis of the silver nanoparticles was confirmed using Ultraviolet–Visible Spectrophotometry that recorded the Surface Plasmonic Resonance peak at around 420 nm....
Techno-economic analysis of converting existing buildings to green energy buildings in Kenya.
Presenter: Sharon Wanjiru Kibera (SCT-356-012/2021)
Programme: MSc. in Renewable Energy Technology
Abstract
The demand for sustainable, cost-effective buildings is growing worldwide, particularly in regions like Kenya that face significant energy challenges and environmental concerns. Green energy...
Abstract
Introduction
Methods and materials
Result
Discussion
Abstract
In this study, three human hair-derived porous carbon (HPC) with various ratios of micropores and mesopores area were produced using chemical activation method with KOH as activator. Based on the weight ratios of KOH to human hair, the samples are identified as HPC1, HPC2, and HPC3, the numbers correspond to the ratios of 1:1, 2:1, and 3:1, respectively. The prepared porous carbons...
The use of Moringa oleifera seeds as efficient adsorbents in water discolouration treatment has been extensively documented over the years. Despite their efficiency, the chemical mechanisms that underpins their water-purifying characteristics are understudied. This study therefore postulated a potential chelation of copper ions by phytochemicals found in moringa oleifera seeds as a key...
Abstract
We present cost-effective and environmentally friendly Cr- Cr₂O₃ nanocomposites coatings, prepared using an entirely green process on a copper (Cu) substrate. The Cr₂O₃ was synthesized through eco-friendly methods and deposited onto the Cu substrate using spin coatings at rotational speeds (RS) of 600rpm. The XRD results revealed that at lower concentrations, the thin film samples...
Most polluted environments, most challengingly, aerosol types, contain cocktail of different toxicants. Multi- templating of matrices has been the recent target by researchers in a bid to solving complex mixed-toxicant challenges using single or common remediation systems. This investigation looks at the effect of such multi-templated system vis-a-vis the synthesis by non-covalent interaction,...
Metal injection moulding (MIM) is a net-shaped process for production of microparts via feedstock formulation/preparation, injection moulding, debinding and sintering processes. Suitability of MIM for processing nonferrous metal powders such Magnesium, Copper and Aluminium are yet to be perfected due to high affinity to oxygen among other problems. Meanwhile, thermal decomposition behaviour of...
UV/Fenton Tetracycline (TC) wastewater treatment was carried out using a plate fixed bed photocatalytic reactor for practical application. Composite TiO2/Fe2O3 was immobilized on Al2SiO5 fiber board and (TiO2/Fe2O3@Al2SiO5) were fabricated using calcination method. The resulting supported catalyst (TiO2/Fe2O3@Al2SiO5) was applied to the plate fixed bed continuous flow reactor with TC as the...
The use of macadamia nutshell biomass for the synthesis of Hydrochar, modified with aminopropyltriethoxysilane for the removal of chromium in wastewater.
Wastewater containing hexavalent chromium (Cr (VI)) presents significant ecological and environmental hazards. An innovative MNS hydrochar was created using a hydrothermal process with macadamia nutshell (MNS) biomass grafted with...
: In recent decades, the solubility of carbon dioxide (CO₂) in brine has gained increasing attention due to its critical role in carbon capture and storage (CCS) and enhanced oil recovery (EOR). Despite its importance, there is a lack of comprehensive data on the CO₂-brine system, particularly in high-salinity environments and in the presence of functionalized nanomaterials. Building on a...
Abstract Title:
TRANSFORMING PLASTIC WASTE INTO 3D PRINTING FILAMENT: A SUSTAINABLE APPROACH FOR MATERIAL SCIENCE IN AFRICA
UDI PHILIPPA, JIBRIL A SALIHU, ATSACHA ISHAKU NDONYA, YAKUBU GODWIN, SANI HAUWA A, GODSPOWER ANABOREE.
1) Nigeria Space Agency - National Space Research and Development Agency (NASRDA), Physical Sciences Division, Abuja, Nigeria
2) Nigeria Space Agency -...
This study engaged ab initio Density Functional Theory (DFT) within the Generalized Gradient Approximation (GGA) with the flavour of Perdew – Burke- Ernzerhof (PBE) parameterization to investigate the structural and transport properties of half-Heusler compound HfIrSb, full-Heusler compound HfIr2Sb and their interface HfIr2Sb/HfIrSb. Three different atomic configurations that is the alpha,...
For the extraction of metal ions, graphene oxide (GO) is a highly effective adsorbent. GO surface functional moieties, however, are not metal ion specific. As a result, in this work, GO was chemically functionalized using gold (Au) to increase its mercury selectivity. To make the adsorbent's separation easier, the GO was first magnetized using the co-precipitation technique. The synthesized...
Unlocking Africa’s Future From Extractive Metallurgy to Manufacturing: Closing the Value Chain
S NDLOVU1,2
The University of Arizona, Department of Mining and Geology, Tucson, USA
University of the Witwatersrand, School of Chemical and Metallurgical Engineering, Johannesburg, South Africa
Corresponding author: Sehliselo Ndlovu, ndlovus@arizona.edu
Africa is endowed with vast...
EURAXESS Africa is one of the nine hubs of the EURAXESS Worldwide initiative, established by the European Union to enhance global research collaboration and funding opportunities. This initiative focuses on fostering scientific collaboration between African researchers and their European counterparts, facilitating knowledge and skill exchange through mobility, research funding, and...
The LiMn2O4 as a cathode material for Li-ion batteries face practical limitations mainly due to electrolyte interactions, which result in capacity fading. Hence, this work uses the DFT calculations to explore effect of coating, and interfacial stability in an α-Al2O3 coated LiMn2O4. Spin-polarized DFT calculations were performed using VASP code 3 to study the stability and interactions of the...
This research work was carried out to eliminate the problems of delithiation and lithiation experienced in lithium-ion-based batteries using Ca2+ nanoparticles derived from eggshells. The methodology of this work was done by first synthesizing silicon nanoparticles from rice husks using the hydrothermal method and the Ca2+ nanoparticles using the sol-gel method. The nanosilicon and Ca2+...
This research investigates the upcycling of mango seed coat waste as natural fibre reinforcements in biodegradable polylactic acid (PLA)-based composite 3D printing filaments for structural applications in the energy sector. By integrating agricultural waste fibres into a PLA matrix, the study addresses the need for eco-friendly materials and innovative waste management strategies. The fibres...
Introduction
Concrete is one of the most utilized construction materials globally, requiring immense quantities of natural resources. Concurrently, industrialization has led to an increase in waste, including foundry sand, which often ends up in landfills, exacerbating environmental concerns. This study explores upcycling Waste Foundry Sand (WFS) into concrete products like paver blocks...
While contributing to the adaptation to a newer technology, the conversion of internal combustion vehicles (ICE) to electric vehicles generates huge amount of removed components. An ICE Avanza Toyota vehicle converted into an electric, release about 10 % vehicle mass of value containing removed components. In its essence, the conversion involves stripping out of the combustion system from an...
Stainless steel 17-4 PH is the most preferred precipitation-hardening steel in applications involving high corrosion conditions such as food and chemical processing, oil and gas, radioactive storage, moulds, and dies among others. Additive manufacturing of 17-4PH SS via material extrusion has gained popularity due to the availability and affordability of the technology. However, 17-4 PH...
