A5071419975- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Advancements in Battery Materials
- Conducting polymers and applications
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Transition Metal Oxide Nanomaterials
- ZnO doping and properties
- Advanced Battery Materials and Technologies
- Electrospun Nanofibers in Biomedical Applications
- Gas Sensing Nanomaterials and Sensors
- Layered Double Hydroxides Synthesis and Applications
- Electrochemical sensors and biosensors
- Semiconductor materials and interfaces
- Rare-earth and actinide compounds
- Ga2O3 and related materials
- Diamond and Carbon-based Materials Research
- Copper-based nanomaterials and applications
- Fuel Cells and Related Materials
- Advanced Sensor and Energy Harvesting Materials
- Aerogels and thermal insulation
- Extraction and Separation Processes
- Biodiesel Production and Applications
- Magnetic Properties of Alloys
- Magnetic properties of thin films
University of Pretoria
2016-2025
University of South Africa
2018
National University of Lesotho
2007-2009
Louisiana State University
2000-2008
Jet Propulsion Laboratory
2000
University of Maryland, Baltimore
2000
Sidney Kimmel Cancer Center
2000
Washington University in St. Louis
2000
Thomas Jefferson University
2000
Louisiana State University Agricultural Center
2000
We report on the transformation of pine cone biomass into porous carbon<italic>via</italic>KOH activation and carbonization at 800 °C as electrode materials for supercapacitors.
The LiMn1.5Ni0.5O4 spinel is an important lithium ion battery cathode material that has continued to receive major research attention because of its high operating voltage (∼4.8 V). This study interrogates the impact microwave irradiation on Mn3+ concentration and electrochemistry spinel. It shown capable tuning content for enhanced electrochemical performance (high capacity, capacity retention, excellent rate capability, fast Li+ insertion/extraction kinetics). finding promises...
Asymmetric supercapacitor with VS<sub>2</sub> nanosheets as positive and activated carbon materials negative electrodes exhibited maximum energy density (42 W h kg<sup>−1</sup>).
This work presents the effect of different contents graphene foam (GF) on electrochemical capacitance nickel phosphate Ni3(PO4)2 nano-rods as an electrode material for hybrid energy storage device applications. Pristine and Ni3(PO4)2/GF composites with GF mass loadings 30, 60, 90 120 mg were synthesised via a hydrothermal method. The behavior pristine analysed in three-electrode cell configuration using 6 M KOH electrolyte. Ni3(PO4)2/90 composite sample exhibited highest specific capacity 48...
Porous activated carbons was synthesized by an environmentally friendly technique, with in-depth experimental study carried out to understand the electrochemical behaviour in different aqueous electrolytes (KOH, LiCl, and Na<sub>2</sub>SO<sub>4</sub>).
Abstract In this study, the synthesis of porous activated carbon nanostructures from peanut (Arachis hypogea) shell waste (PSW) was described using different porosity enhancing agents (PEA) at various mass concentrations via a two-step process. The textural properties obtained were depicted with relatively high specific surface area values 1457 m 2 g −1 , 1625 and 2547 for KHCO 3, K CO 3 KOH respectively concentration 1 to 4 which complemented by presence blend micropores, mesopores...
Advanced functionalized nanomaterials are indispensable for the efficient production of solar fuels via reduction CO2 under light. This approach simultaneously addresses two major issues: (a) global warming due to anthropogenic and (b) ongoing energy crisis. Owing their high catalytic activity visible-light absorption, MoS2 has recently emerged as a suitable candidate photocatalytic from water splitting reduction. However, it currently shows poor conversion efficiency because low adsorption...
This work provides insights into the key role of ligands in formation mechanism bimetallic ZnCo-MOFs for enhanced supercapacitor performance.
We have fabricated a symmetric electrochemical capacitor with high energy and power densities based on composite of graphene foam (GF) ∼80 wt% manganese oxide (MnO2) deposited by hydrothermal synthesis. Raman spectroscopy X-ray diffraction measurements showed the presence nanocrystalline MnO2 GF, while scanning transmission electron microscopies needle-like coated anchored onto surface graphene. Electrochemical electrode gave specific capacitance 240 Fg−1 at current density 0.1 Ag−1 for...