A Technical note on Optimization of performance parameters for carbonaceous material for Lithium-ion batteries by Dual Ion Beam Sputtering (DIBS) Technology
Sugar adsorption on nanoporous carbon fabricated from rice husk
Thermal stability of high-pressure phase of SrO:Ce phosphor
Enhanced Light Yield in Organic Plastic Scintillators- Synthesis and Characterization of Novel Polymer Systems
Optimizing Froth Flotation Techniques for Sustainable Beneficiation of Spodumene and Lepidolite in Zimbabwe: Enhancing Lithium Recovery for Battery-Grade Material Production
An Investigation on Recent Trends in Metamaterial Types and its Applications
A Review on Plasma Ion Nitriding (PIN) Process
Comparative Parabolic Rate Constant and Coating Properties of Nickel, Cobalt, Iron and Metal Oxide Based Coating: A Review
A Review on Friction and Wear Behaviors of Brake’s Friction Materials
Electro-Chemical Discharge Machining- A review and Case study
Electrical Properties of Nanocomposite Polymer Gels based on PMMA-DMA/DMC-LiCLO2 -SiO2
Comparison Of Composite Proton Conducting Polymer Gel Electrolytes Containing Weak Aromatic Acids
Enhancement in Electrical Properties of PEO Based Nano-Composite Gel Electrolytes
Effect of Donor Number of Plasticizers on Conductivity of Polymer Electrolytes Containing NH4F
PMMA Based Polymer Gel Electrolyte Containing LiCF3SO3
Electrochemical investigations of ion-beam sputter-deposited carbon thin films for Li-ion batteries have recently been drawing the attention of various entrepreneurs. This is because of the fact that they have very good adhesion and very high damage threshold, and thus add to the longevity of the batteries. Another recent development has been the evolution of the High power Laser Coatings Technology.The development of high laser damage threshold coatings have drawn the attention of various researchers. The present paper discusses technically many important aspects – Materials and the Coating Techniques for the development of such coatings, and presents the important points, which have been observed and verified during the course of research and development for designing, and fabrication of such coatings for various types of high power lasers. The experimental results in improving the Laser induced damage threshold by different techniques have been presented in this paper. Finally, it has been suggested to use DIBS Technique for coating the batteries after theoretically discussing the magnitude ofthe improvement in the performance and longevity of the batteries. For the benefit of the likely experimentalists, optimization of performance parameters has been presented. Though these values are in the context of high power laser coatings, they are equally applicable for coatings for batteries.
Carbon materials have different types of voids, namely ordered or disordered pore diameters, interlayers (silt-like pores), and free volumes. In this study, the selective sugar adsorption behavior of carbon materials with different void types was investigated. In particular, the sugar adsorption behavior of nanoporous carbon (NPC) prepared from rice husks was investigated and compared with that of commercial activated carbon, polymer-like carbon (PLC), and polyethylene (PE). For this purpose, glucose, sucrose, and maltotriose solutions of different molecular weights were used. These results indicate that NPC selectively adsorbs sugar because of its unique micropore-filling phenomenon. These results indicate that NPC and related materials can be used for medical applications.
Alkaline-earth metal oxides with 6-coordinated configurations easily react with water because of their deliquescent nature. In this study, the high-pressure phase (8-coordinated) of a cerium-doped strontium oxide (SrO:Ce) phosphor was synthesized by sintering at 1500 ℃ in a reduction atmosphere, and its thermal stability was investigated. The results indicated that the 8-coordinated ultraviolet SrO:Ce phosphor had high thermal stability.
The enhancement of gamma scintillation light yield in organic plastic scintillators is of great interest for radiation detection applications, particularly in national security, medical imaging, and high-energy physics. This study presents novel polymer matrices incorporating thermally activated delayed fluorescence (TADF) compounds and alternative fluorene-based materials. These materials exhibit significantly improved scintillation efficiency over conventional polyvinyl toluene (PVT) and polystyrene-based scintillators. Comprehensive photophysical characterization, including photoluminescence and radioluminescence measurements, was performed using photomultiplier tubes (PMTs) and silicon photomultipliers (SiPMs). The results suggest that TADF-enhanced scintillators achieve superior energy harvesting capabilities, offering a promising route for the development of next-generation organic scintillators.
Zimbabwe has the largest known hard rock lithium deposits in Africa, and it is among the top ten worldwide after countries like Chile, Austria, Brazil and Canada. This presents Zimbabwe with a chance to become one of the most viable economies. Challenges are associated with viable exploitation approaches especially at coming up with a high grade concentrate which can be used to produce battery grade lithium cathodes active materials. This paper aims at developing a sustainable route for spodumene beneficiation through optimization of froth flotation. The best opportunity is to focus on the Bikita Minerals lithium deposits as it is well endowed with various types of Lithium. Bikita mine in the southern province of Masvingo holds the world’s largest known lithium deposits mainly in the form of spodumene, petalite, and lepidolite, at around 11m tonnes. Early research reflect that froth flotation is the most reliable and sustainable method to concentrate various lithium ores producing an average grade of around 6% Li2O concentrate from 1% Li2O ores. Anionic collectors such as oleic acid produce the best grades as compared with other types of collectors. Due to its complex structure, lepidolite requires more reagents as compared to spodumene leading to high operational expenses in lepidolite flotation. Studies have also proven that to produce battery grade Lithium Carbonate on an economical scale at least a grade of 5.5% Li2O is required. Factors affecting the final grade of the concentrate were also investigated in the research and a conclusion was drawn. The results obtained from experimental work showed that Froth Flotation is by far the most sustainable method for lithium beneficiation method with high recovery rates often exceeding 90%. However further processing can also be done to recover other minerals such as aluminium and phosphorus which are present in both lepidolite and spodumene in higher amounts.
