- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Extraction and Separation Processes
- Transition Metal Oxide Nanomaterials
- Structural Analysis and Optimization
- Ferroelectric and Piezoelectric Materials
- Dynamics and Control of Mechanical Systems
- Iron oxide chemistry and applications
- Vibration and Dynamic Analysis
- Copper-based nanomaterials and applications
- MXene and MAX Phase Materials
- Semiconductor materials and devices
- Chemical Synthesis and Characterization
- Dielectric materials and actuators
- Fluid Dynamics Simulations and Interactions
- Membrane-based Ion Separation Techniques
- Ultrasound Imaging and Elastography
- Characterization and Applications of Magnetic Nanoparticles
- Polyoxometalates: Synthesis and Applications
- Wave and Wind Energy Systems
- Magnetic Properties and Synthesis of Ferrites
- ZnO doping and properties
University of Arkansas at Fayetteville
2024
Tokyo University of Science
2021-2022
Qatar Foundation
2018-2021
Hamad bin Khalifa University
2018-2021
Government of the Republic of Korea
2015-2017
Korea Advanced Institute of Science and Technology
2014-2017
Daejeon University
2014-2017
Pondicherry University
2011-2016
Indian Institute of Technology Bombay
2013-2014
University of Guelph
2012
Palladium (Pd) nanoparticles were synthesized using protein rich soybean leaf extract based biological process. Reduction of palladium ions by was examined UV-visible spectroscopic technique. It believed that the proteins and some amino acids are exist in extracts actively involved reduction ions. Further it confirmed Fourier transformations infrared (FTIR) analysis. These not only involving but also acting as surfactants inhibits rapid agglomeration. The phase purity investigated through...
The reversible electrochemical activity of the Na<sub>3</sub>V<sub>2</sub>O<sub>2x</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>3−2x</sub> compound in an aqueous solution is reported for first time.
Bare and carbon coated nanorods were synthesized by modified polyol resin coating processes to enhance their conductivity as well electrochemical properties. X-ray diffraction, Fourier transform infrared, scanning electron microscope, transmission microscope results confirmed crystalline phase, structure, uniform of over nanorods, respectively. Raman spectra showed two bands (D G bands) due the presence carbon, which was not observed in bare nanorods. Conductivity mobility more than 2 orders...
Porous CoFe<sub>2</sub>O<sub>4</sub> nanoclusters with different concentrations of graphene based composites were synthesized by a simple solvothermal process.
LiNi0.5Mn1.5O4 (LNMO) is one of the most promising cathode materials for next-generation lithium-ion batteries rapid charging–discharging applications. The surfaces LNMO samples are coated with different amounts (0.5–2.0 wt %) silica (SiO2) using a cost-effective and scalable ball milling process, surface-modified shows excellent electrochemical stability conventional liquid electrolyte. advantages this coating demonstrated by improved performances at ambient elevated temperatures (25 55 °C)...
Conversion electrodes based on binary or ternary metal oxides are known to suffer from a slow electrode kinetic problem that is related solid-state lithium diffusion, electrochemical stability and loss of coulombic efficiency in the initial cycles. The diffusion mainly governed by grain boundary effect during conversion reaction but reason behind still unknown. To overcome issues nanoarchitectured made nano-dimensions it not clear how solve problem, which very acute when perform at high...
Abstract We introduce a process of making high‐capacity and rate‐capable metal‐ferrite‐based conversion anodes for lithium‐ion batteries. Cobalt ferrite (CoFe 2 O 4 ) exhibits discharge capacity that is two‐times higher compared to the state‐of‐the‐art graphite anode, but at same time it shows high volume change (ca. 95 %) during reaction with lithium in an electrochemical environment. This large expansion responsible particle–particle conductive‐carbon particles–active materials detachment,...
Porous α-Fe<sub>2</sub>O<sub>3</sub>nanostructures were developed in the presence of a base catalyst by rapid microwave assisted hydrothermal method.
Aqueous sodium ion batteries are future low cost and eco-friendly energy storage systems, but aqueous very much constrained by the electrolyte degradation. In this aspect, we have evaluated effect of salt concentration additives on full cell performance using NaTi2(PO4)3 Na3V2O2X(PO4)2F3-2X as anode cathode materials respectively. Before making cell, adding different concentrations vinylene carbonate (VC), carboxymethyl cellulose (CMC) agarose (Ag) to 10 M NaClO4 was correlated material in...
Hydrothermally synthesized MnFe<sub>2</sub>O<sub>4</sub>/rGO composite with sodium alginate binder shows a highly stable capacity of 258 mA h g<sup>−1</sup><italic>versus</italic>Na/Na<sup>+</sup>at 0.1C rate.
Lithium-rich layered oxide materials are considered as potential cathode for future high-performance lithium-ion batteries (LIBs) owing to their high operating voltage and relatively specific capacity. However, perceptible issues such poor rate performance, capacity retention, degradation during cycling need be improved before the successful commercialization of material. In this report, zirconia coated Li1.2Ni0.16Mn0.56Co0.08O2 (NMC) (where ZrO2 = 1.0, 1.5 2.0 wt%) synthesized using a...
The electrochemical performance of MoS<sub>2</sub> microflowers with different binders is evaluated through conversion reaction. Na-alginate show the highest cycling stability, delivering a capacity 595 mA h g<sup>−1</sup> after 50 cycles.
Na<sub>3</sub>V<sub>2</sub>O<sub>2X</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>3−2X</sub>–rGO with CMC binder shows the enhanced electrochemical performance; it exhibits 98% capacity retention at 0.1C rate over 250 cycles. Also, remits discharge of 98 mA h g<sup>−1</sup> 0.2C in a full cell NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>–MWCNT.
A rapid and efficient two-steps growth strategy has been adopted to synthesize monodisperse singlecrystalline spinel LiMn2O4 nanorods. The first step is crystalline β-MnO2 nanorods through microwave hydrothermal process followed by second as solid state reaction between LiOH.H2O obtain pure In addition, the possible formation mechanism of was also discussed. have an average diameter 190 nm length 0.8-1.3 μm. Galvanostatic battery testing shows that delivered a stable charge discharge...