A5064001220- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Electrospun Nanofibers in Biomedical Applications
- Advancements in Battery Materials
- Advanced Measurement and Metrology Techniques
- Surface Modification and Superhydrophobicity
- Advanced Battery Materials and Technologies
- Conducting polymers and applications
- Advanced battery technologies research
- Metal Forming Simulation Techniques
- Optical measurement and interference techniques
- Surface Roughness and Optical Measurements
- Metallurgy and Material Forming
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Molten salt chemistry and electrochemical processes
- Fuel Cells and Related Materials
- Ammonia Synthesis and Nitrogen Reduction
- Biodiesel Production and Applications
- Vibration and Dynamic Analysis
- Scientific Measurement and Uncertainty Evaluation
- Advanced Sensor Technologies Research
- Sensor Technology and Measurement Systems
- Non-Destructive Testing Techniques
- Microstructure and Mechanical Properties of Steels
Birla Institute of Technology and Science, Pilani
2018-2025
Birla Institute of Technology and Science, Pilani - Goa Campus
2018-2024
George Washington University
2017
Drexel University
2014-2016
Philadelphia University
2014-2016
CSIR National Physical Laboratory of India
2005-2014
American Petroleum Institute
2012
Indian Institute of Technology Delhi
2010
Aligarh Muslim University
2010
Commonwealth Scientific and Industrial Research Organisation
1996-2002
Free-standing porous carbon nanofiber interlayers with tunable surface area and pore structure have been studied to enhance the Li–S battery capacity cycle life.
As a primary component in lithium–sulfur (Li–S) batteries, the separator may require custom design order to facilitate electrochemical stability and reversibility. Here, with an activated carbon nanofiber (ACNF)‐filter coated onto polypropylene membrane is presented. The entire configuration comprised of ACNF filter arranged adjacent sulfur cathode so that it can out freely migrating polysulfides suppress severe polysulfide diffusion. Four differently optimized ACNF‐filter‐coated separators...
Two optimized cathode configurations (a porous current collector and an interlayer) are utilized to determine the better architecture for improving cycle stability reversibility of lithium–sulfur (Li–S) cells. The electrochemical analysis on upper-plateau discharge capacity (QH) lower-plateau (QL) is introduced assessing, respectively, polysulfide retention reactivity cell. results in line with expected materials chemistry principles suggest that interlayer configuration offers stable cell...
A novel approach to fabricate freestanding heteroatom-enriched carbon nanofibers using sodium chloride is presented. The fabricated demonstrate excellent supercapacitive performance.
Abstract Metal‐organic framework (MOF)–carbon composite materials are promising candidates for use as electrocatalysts in zinc‐air batteries (ZAB). Electrospun carbon nanofibers (CNFs) particularly advantageous conductive substrates due to their porous and binder‐free architecture. However, achieving stable efficient dispersion of MOFs on CNFs remains a significant challenge. In this study, we present the synthesis electrode comprising nickel‐based metal‐organic decorated over cobalt...
Abstract Efficient, low‐cost, non‐precious metal‐based, and stable bifunctional electrocatalysts are key to various energy storage conversion devices such as regenerative fuel cells metal‐air batteries. In this work, we report cobalt nanoparticle‐embedded porous carbon nanofibers with inherent N‐ F‐doping binder‐free excellent activity for both the oxygen reduction evolution reaction (ORR/OER) in an alkaline medium. Single‐step electrospinning of a solution polymer mixture (carbon precursor)...
Metal–organic frameworks (MOFs) represent a promising class of electrode materials for electrochemical energy storage systems due to their tunable morphology, high surface area, and chemical composition. However, the poor electron transport characteristics MOFs have hindered application in supercapacitor electrodes. Here, we report seed-assisted synthesis freestanding composite featuring hydrangea flower-like Ni-MOF structures anchored on cobalt oxide (CoOx)-embedded carbon nanofibers...
A simple technique for fabricating binder-free cathodes Li–O<sub>2</sub>batteries is presented, and the associated discharge–charge reaction mechanisms are discussed.
Meniscus-confined electrodeposition and electrodissolution are a facile maskless approach to generate controlled surface patterns 3D microstructures. In these processes, the solid-liquid interfacial area confined by meniscus dictates zone on which or occurs. this work, we show that process of in meniscus-confined droplet system can lead dynamic spreading meniscus, thereby changing meniscus. Our results wetting dynamics depends applied voltage type interface underneath droplet, specifically...
Abstract We report monoaxial electrospinning and self‐assembly characterization of poly(3‐hexylthiophene)/[6,6]‐phenyl‐C61‐butyric acid methyl ester (P3HT/PCBM) nanofibers. Nanofibers were directly compared to films (as made annealed) understand the effects extensional forces high evaporation rate inherent on nanoscale structure. X‐ray scattering shows can achieve improved crystallinity reduced length scale P3HT PCBM phases. Due flow, co‐continuous phases form along fiber axis, as evident in...
Abstract The biodiesel production from alkali-catalyzed transesterification of karanja oil was investigated. In this study, the effect three parameters, i.e., reaction temperature, catalyst concentration, and molar ratio methanol to on yield studied. Central composite design (CCD) along with response surface methodology (RSM) used for designing experiments estimating quadratic surface. Catalyst concentration found have a negative yield, whereas showed positive effect. Temperature significant...
The results of the APMP key comparisons on ball plate and hole (APMP.L-K6.2007) are reported. Both transfer standards were provided by NMIJ, Japan. standard is 532 mm in nominal dimension 25 spheres embedded. Thirteen National Metrology Institutes (8 from APMP, 5 other Regional Organizations) participated measurement comparison. 550 there 44 cylindrical holes it. Nine (5 4 comparison started May 2006 finished October 2008. participants used different techniques which for their routine...