A5025021806- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Battery Technologies Research
- Hybrid Renewable Energy Systems
- Advanced battery technologies research
- Ionic liquids properties and applications
- Catalytic Processes in Materials Science
- Polyoxometalates: Synthesis and Applications
- Extraction and Separation Processes
- Supercapacitor Materials and Fabrication
- Inorganic Chemistry and Materials
- Utopian, Dystopian, and Speculative Fiction
- Catalysis and Oxidation Reactions
- Superconductivity in MgB2 and Alloys
- Microfluidic and Bio-sensing Technologies
- South Asian Cinema and Culture
- Recycling and Waste Management Techniques
- Southeast Asian Sociopolitical Studies
- Inorganic Fluorides and Related Compounds
- Amino Acid Enzymes and Metabolism
- Ferroelectric and Piezoelectric Materials
- Conducting polymers and applications
- Nanomaterials for catalytic reactions
Monash University
2020-2025
Indian Institute of Technology Bombay
2013-2025
Australian Regenerative Medicine Institute
2020-2024
The University of Melbourne
2024
North Bengal University
2022-2023
University of Mumbai
2018
Deakin University
2018
University of California, Riverside
2003
Jawaharlal Nehru University
1991
A non-flammable ionic liquid-ether based hybrid electrolyte shows a robust Li deposition morphology and very stable cycling of NMC|Li metal cell facilitated by beneficial interphase formation at the anode surface.
Ionic liquids and their various analogues are without doubt the scientific sensation of last few decades, paving way to a more sustainable society. Their versatile suite properties, originating from an almost inconceivably large number possible cation anion combinations, allows tuning structure serve desired purpose. hence offer myriad useful applications solvents catalysts, through lubricants, gas absorbers, azeotrope breakers. The purpose this review is explore unexpected these...
Abstract Extreme fast charging (XFC, i.e., 80% state of charge within 15 min, 4C rate) remains a high‐desirability criterion for next‐generation lithium batteries. While the anodes, such as, graphite and are historically acknowledged as critical hurdles toward XFC Li‐ion batteries, stability cathodes under sustained high rate cycling has not been addressed in literature. In this work, first time, cobalt‐free LiMn 2 O 4 (LMO) batteries with practical areal capacity (1 mAh cm −2 )...
We explore a superconcentrated electrolyte comprising <italic>N</italic>-propyl-<italic>N</italic>-methylpyrrolidinium bis(fluorosulfonyl)imide, 1,2 dimethoxyethane and 3.2 mol kg<sup>−1</sup> LiFSI. It offers an alternative ion-transport mechanism, improved fluidity ultra-stable Li metal battery performance.
Abstract The atmospheric instability and the corrosive tendency of hexafluorophosphate [PF 6 ] − fluorosulfonylimide [FSI] based lithium salts, respectively, are among major impediments towards their application as electrolytes in high voltage batteries. Herein a new class Li salts is introduced electrochemical behavior explored. successful synthesis characterization reported, including crystal structure, 1,1,1,3,3,3‐(tetrakis)hexafluoroisopropoxy borate (LiBHfip). oxidative stability this...
Abstract High power application of Li‐battery remains a challenge due to the lack stable fast‐charging cathode materials. Lithium manganese oxide (LMO) is very promising its high operating voltage and fast charging ability; however, associated Mn‐dissolution one main hindrances practical applicability. In this work, we demonstrate for first time use commercially scalable method through proprietary Calix flash calcination (CFC) technology develop high‐performance electrode materials where...
Hydrogen is a promising fuel for future energy systems, but problems are associated with its storage and transportation because of low density high diffusivity. Chemical hydrogen has shown highly properties, such as boron-containing compounds, which typical examples. Boron-containing compounds have exceptional properties chemical storage, in recent years, their hydrolytic thermolytic dehydrogenation drawn significant attention. Ammonia borane (NH3BH3, AB), among them, capacity. However,...
Current Li–S battery technology has yet to reach the promise of high capacity and suffers rapid fade due in large part dissolution diffusion polysulphide intermediates. The electrolyte plays a significant role here as well stabilizing Li metal anode electrochemistry. In this work, novel hybrid system is investigated based on varying composition N-methyl, N-propyl pyrrolidinium bisfluorosulfonimide (C3mpyrFSI) ionic liquid (IL) 1,2-dimethoxy ether (DME) at saturated concentration LiFSI salt,...
A fluorinated lithium alkoxide salt, nonafluoro-tert-butoxide, demonstrates higher stability on aluminium at high potential and shows improvement in the cycling performance of LNMO-graphite batteries (4.8 V) as electrolyte additive.
The thermolytic decomposition of ammonia borane (AB) is known to proceed through the polymeric coupling reaction between -BH3 and -NH3 sites multiple molecules, which results in release hydrogen other by-products, e.g., ammonia, diborane borazine. formation these by-products concomitantly pollutes stream, therefore, it necessary remove gases from product stream. In current work, a cost effective easy synthesize support material, aluminium phosphate (AP), introduced AB decomposition. An situ...
In this work, we demonstrate a rapid protocol to address one of the major barriers that exists in fabrication chip devices, creating micron-sized structures substrate material. This approach makes it possible design, produce, and fabricate microfluidic system with channel features >10 µm poly(dimethylsiloxane) (PDMS) under 8 hours utilizing instrumentation common most machine shops. The procedure involves creation master template negative features, using high precision machining. is then...
Abstract Surface coating lithium‐ion battery cathodes is a promising strategy to improve performance and mitigate cathode degradation. The coatings studied date focus on either electronically or ionically conducting layers, which have been introduced enhance the redox reactions of particles, oxide‐based physical protection layers limiting surface Such require high‐temperature, time‐consuming synthesis processes, along with uncertainty in specific interactions between these lithium ions....
Currently available electrolyte materials for sodium battery technology remain unoptimized, despite the success of their lithium counterparts. Herein, highly fluorinated borate ester anions are synthesized and characterized in terms physical electrochemical properties as salts 1,2-dimethoxyethane (DME) solvent. Walden analysis nuclear magnetic resonance pulsed field gradient diffusion measurements utilized to probe ionicity electrolytes, demonstrating that...
Solid-state <sup>1</sup>H–<sup>14</sup>N<sup>OT</sup> HMQC, <sup>11</sup>B MQMAS and <sup>1</sup>H–<sup>11</sup>B HETCOR NMR experiments are used to explore the role of homopolar B–B interaction in thermal dehydrogenation pure supported ammonia borane, for it's potential hydrogen storage applications.
Aluminium phosphate and bentonite supported Co-B catalyst were synthesized via two step impregnation-reduction method for sodium borohydride hydrolysis. The catalysts characterized by XRD, FTIR, XPS, FE-SEM, FE-TEM, BET, ICP-AES techniques tested NaBH4 hydrolysis reaction. results demonstrated that the greatly facilitate Highest rate observed Co-B/AlPO4 Co-B/bentonite are 6.50 3.91 L min−1 g−1, respectively, with 2 wt% NaBH4, 5 NaOH solution at 30 °C. hydrogen generation was found to...
Borazine is a by-product often encountered in the thermal decomposition of ammonia borane, which leads to an inescapable hindrance towards sustainability and cost effectiveness.
LiNi0.5Mn1.5O4 (LNMO) cathodes offer high energy density in Li-ion batteries due to their higher operational potential than conventional cathode materials. However, practical application is limited by the active metal (e.g., Mn) dissolution, which irreversibly compromises graphite anode of a battery. In this work, lithium nonafluoro-tert-butoxyborate (LiONFtb) has been tested as an additive LNMO-graphite system. The electrochemical stability analysis LiONFtb salt on aluminium current...
Abstract Ammonia borane is considered as a potential hydrogen storage material due to its high content, ease of handling, and moderate dehydrogenation temperature. The regeneration ammonia (AB) essential for use sustainable material. In the current work, we attempted regenerate AB from post heated product (spent fuel, i. e., products obtained after release) through digestion mediated B−O−C route. We have also demonstrated compatibility with cost‐effective layered aluminosilicate support...
Sodium borohydride hydrolysis is one of the promising methods for supply hydrogen on-board in fuel cell vehicle. A suitable catalyst required to control release from stable alkaline sodium solution. The present paper reports effect Co (II) doped zeolite-X and K-chabazite catalysts reaction. Kinetics reaction was observed get enhanced by use these catalysts. Activation energies are found be 30.7 48 kJ mol -1 , respectively.