Mr. Nagmani

Postdoctoral Research Associate at International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad. Ph.D. (Thesis Submitted) at School of Energy Science and Engineering, Indian Institute of Technology Kharagpur

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Posted by NAGMANI on June 26, 2022

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Optimizing ultramicroporous hard carbon spheres in carbonate ester-based electrolytes for enhanced sodium storage in half-/full-cell sodium-ion batteries

Posted by NAGMANI on June 23, 2022

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Convocation: Gold Medalist with Hon'ble President of India

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Utilization of Single Biomass-derived Micro-Mesoporous Carbon for Dual-Carbon Symmetric and Hybrid Sodium-ion Capacitors

New Journal of Chemistry (Royal Society of Chemistry): (IF = 3.925 ); Publication Date: 03 June 2023 DOI: https://doi.org/10.1039/D3NJ01349A Author(s): Nagmani , Biraj Kanta Satpathy , Abhijeet Kumar Singh, Debabrata Pradhan , and Sreeraj Puravankara Abstract Sodium-ion capacitors (SICs) have emerged significantly in the last decades due to their high energy, high power with rapid energy deliverability, and sustainability quotient as an alternative to lithium-ion capacitors (LICs). In this study, a jute-based precursor-derived carbon is chemically activated with or without microwave pretreatment and tested in aqueous and non-aqueous symmetric and asymmetric SICs. The synthesized microwave pretreated activated carbon (AJPC-M) exhibits more defect and micro/ mesoporosity with a high surface area of 1529.75 m 2 g -1 with a high specific capacitance of 1166 F g -1 at the current density of 1 A g -1 and excellent rate capability of 470 F g -1 at 10 A g -1 in the three-elect

Effect of pore morphology on the enhanced potassium storage in hard carbon derived from polyvinyl chloride for K-ion batteries

E lectrochimica Acta : (IF = 6.6 ); Publication Date: 20 July 2023 DOI: https://doi.org/10.1016/j.electacta.2023.142903 Author(s): Nagmani , A Tyagi. P Verma, and Sreeraj Puravankara Abstract Potassium-ion batteries (PIBs), with a bigger shuttling cation ( K + ), compete with Lithium-ion batteries (LIBs) for future energy storage due to the higher mobility of the solvated ions and lesser desolvation energy during energy storage. Developing stable anode material with excellent battery metrics is challenging in PIBs. Graphite, a promising anode for PIBs, faces poor structural stability from massive volume expansion of 61% during intercalation. The hard carbons (HCs) with a pseudo graphitic domain with rich pores and defects can accommodate more potassium ions without significant structural degradation. In this work, we upcycled the polyvinylidene chloride (PVC) to synthesize low-cost, green, and sustainable HCs anode material for PIBs. PVC-derived HCs from commercial and w

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Great time with Supervisor and lab colleagues At Research Institute of Sustainable Energy, TCG Crest, Kolkata with Prof. Sreeraj Puravankara, Dr. Debanajana Pahari and Mr. Dhrubajyoti Das. Convocation @ CUJ (Integrated B Tech & M Tech Degree) Convocation @ CUJ (Gold Medalist) Convocation @ CUJ (with Hon'ble President of India) @ Sarnath, Varanasi with Prof. Sreeraj Puravankara Oral Talk: @ B-FAT- 2020, National Conference, IIT (BHU), Varanasi School of Energy Science and Engineering, Sir. J. C. Bose Laboratory Complex, IIT Kharagpur Indian Institute of Technology Kharagpur (Old Building)