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10 results on '"Hemanth Kumar Beere"'

1. Fabrication of an Energy-Dense, Binder-Free Zn//V5O12·6H2O Solid-State In-Plane Flexible Battery via a Rapid and Scalable Approach

Author

Prahlad Yadav, Nataraj Sanna Kotrappanavar, Pooja B. Naik, Hemanth Kumar Beere, Ketaki Samanta, Naveen S. Reddy, Jari S. Algethami, Mohammed Jalalah, Farid A. Harraz, and Debasis Ghosh

Subjects
Materials Chemistry, Electrochemistry, Energy Engineering and Power Technology, Chemical Engineering (miscellaneous), Electrical and Electronic Engineering
Published
2023
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3. Developing High-Performance In-Plane Flexible Aqueous Zinc-Ion Batteries with Laser-Scribed Carbon-Supported All Electrodeposited Electrodes

Author

Prahlad Yadav, Pooja B. Naik, Hemanth Kumar Beere, Naveen S. Reddy, Ketaki Samanta, Nataraj Sanna Kotrappanavar, Jari S. Algethami, Mohd Faisal, Farid A. Harraz, and Debasis Ghosh

Subjects
TD Environmental technology. Sanitary engineering, Electrochemistry, General Materials Science, Surfaces and Interfaces, Condensed Matter Physics, Spectroscopy
Abstract

Developing high-performance, safer, and affordable flexible batteries is of urgent need to power the fast-growing flexible electronics market. In this respect, zinc-ion chemistry employing aqueous-based electrolytes represents a promising combination considering the safety, cost efficiency, and both high energy and high-power output. Herein, we represent a high-performance flexible in-plane aqueous zinc-ion miniaturized battery constructed with all electrodeposited electrodes, i.e., MnO

Published
2022
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4. Troubleshooting the Limited Zn2+ Storage Performance of the Ag2V4O11 Cathode in Zinc Sulfate Electrolytes via Favorable Synergism with Reduced Graphene Oxides

Author

Rangaswamy Puttaswamy, Hemanth Kumar Beere, Prahlad Yadav, Mohammed Jalalah, M. Faisal, Farid A. Harraz, and Debasis Ghosh

Subjects
Materials Chemistry, Electrochemistry, Energy Engineering and Power Technology, Chemical Engineering (miscellaneous), Electrical and Electronic Engineering
Published
2022
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5. Aging-Responsive Phase Transition of VOOH to V

Author

Radha, Nagraj, Rangaswamy, Puttaswamy, Prahlad, Yadav, Hemanth Kumar, Beere, Shrish Nath, Upadhyay, Nataraj, Sanna Kotrappanavar, Srimanta, Pakhira, and Debasis, Ghosh

Abstract

Vanadium oxyhydroxide has been recently investigated as a starting material to synthesize different phases of vanadium oxides by electrochemical or thermal conversion and has been used as an aqueous zinc-ion battery (AZIB) cathode. However, the low-valent vanadium oxides have poor phase stability under ambient conditions. So far, there is no study on understanding the phase evolution of such low-valent vanadium oxides and their effect on the electrochemical performance toward hosting the Zn

Published
2022

6. Constructing a High-Performance Aqueous Rechargeable Zinc-Ion Battery Cathode with Self-Assembled Mat-like Packing of Intertwined Ag(I) Pre-Inserted V3O7·H2O Microbelts with Reduced Graphene Oxide Core

Author

Pranav Kulkarni, Nataraj Sanna Kotrappanavar, Debasis Ghosh, Radha Nagaraj, Rangaswamy Puttaswamy, Srimanta Pakhira, R. Geetha Balakrishna, Shrish Nath Upadhyay, and Hemanth Kumar Beere

Subjects
Aqueous solution, Materials science, Renewable Energy, Sustainability and the Environment, Graphene, General Chemical Engineering, Intercalation (chemistry), Oxide, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Cathode, Vanadium oxide, 0104 chemical sciences, law.invention, chemistry.chemical_compound, Chemical engineering, chemistry, law, Environmental Chemistry, 0210 nano-technology, Capacity loss, Dissolution
Abstract

Orthorhombic crystal structure of the V₃O₇·H₂O material has large interlayer spacing with an open tunnel, making it promising as an intercalation-based cathode for aqueous zinc-ion batteries. However, structural degradation and dissolution cause quick capacity fading for V₃O₇·H₂O. We addressed this issue via a dual modification of the V₃O₇·H₂O material by pre-intercalation with Ag(I) inside the layers (henceforth will be mentioned as AgₓV₃O₇·H₂O) and simultaneous in situ composite formation with reduced graphene oxide (rGO). Computationally, we showed that Ag(I) pre-intercalation in V₃O₇ facilitates the Zn²⁺ intercalation process by thermodynamically stabilizing the material with an intercalation energy of −34.3 eV. The AgₓV₃O₇·H₂O cathode showed ∼1.44-fold improved capacity (270 mA h g–¹) with much improved rate capability, over the pristine V₃O₇·H₂O. The specific capacity and cycle stability was further significantly improved in the graphene constructed conductive flexible architecture with hydrothermally assisted self-assembled packing of several intertwined AgₓV₃O₇·H₂O microbelt mats with rGO core (AgₓV₃O₇·H₂O@rGO). The AgₓV₃O₇·H₂O@rGO cathode enabled a reversible Zn²⁺ insertion/de-insertion process during charge/discharge (as observed in ex situ XRD study) and a significantly decreased (>27 times) charge transfer resistance over pristine V₃O₇·H₂O to promote high specific capacity of 437 and 170 mA h g–¹ at both low (100 mA g–¹) and high (2000 mA g–¹) current, respectively. The morphological analysis of the AgₓV₃O₇·H₂O@rGO before and after 1000 cycles reveals that, although the structural breakdown of the AgₓV₃O₇·H₂O is inevitable during repetitive cycling, the rGO support provides strong interaction with the AgₓV₃O₇·H₂O mat and buffers the structural strain, prevents the agglomeration of the active material, and slows down the structural dissolution at the interface. The synergistic interaction enabled ∼2.3-fold improved cycle stability over the pristine V₃O₇·H₂O with only 0.028% capacity loss per cycle over 1000 cycles.

Published
2021
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7. Contributors

Author

Temitope Olabisi Abodunrin, Abel G. Achumi, Kayode Adesina Adegoke, Rhoda Oyeladun Adegoke, Waqar Ahmed, Saira Ajmal, Solomon Oluwaseun Akinnawo, Miroslav Almáši, Christina Angelara, K. Archana, Nikolaos Argirusis, Christos Argirusis, Satyajeet Arya, A. Asif, Hafiz Muhammad Asif, Pierre-Henri Aubert, Figen Balo, Deborah Temitope Bankole, Hemanth Kumar Beere, Olugbenga Solomon Bello, Kaushalya Bhakar, Dan J.L. Brett, Xian-He Bu, Vikas Chaudhary, Aibing Chen, Mingren Cheng, Akash Deep, Godshelp Osas Egharevba, Fehim Fındık, Vellaichamy Ganesan, Debasis Ghosh, Mohammad Reza Golobostanfard, Ram K. Gupta, Rupali Gupta, Payam Hayati, Guanjie He, Shumaila Ibraheem, Sehrish Ibrahim, Tenzin Ingsel, Donpaul Jose, Eirini Kanellou, Liqun Kang, Antonis Karantonis, Muhammad Ali Khan, Subratanath Koner, Lingjun Kong, Anuj Kumar, Dinesh Kumar, Parveen Kumar, Praveen Lakhera, Randy W. Larsen, Hugo Lavillunière, Yiyang Liu, Jianqiang Liu, Xinying Liu, Xu Lu, Zachary L. Magnuson, Ghodrat Mahmoudi, S. Maitra, Nobanathi Wendy Maxakato, Jacob M. Mayers, Maria Mechili, R. Mitra, Sanna Kotrappanavar Nataraj, T.K. Nath, Meena Nemiwal, Tuan Anh Nguyen, Solomon Oluwole Oladeji, Adetola Christianah Oladipo, Kabir O. Otun, Demet Ozer, Mala Pamei, Ying Pan, Pavlos K. Pandis, Thuan-Nguyen Pham-Truong, Erfan Pourshaban, Rangaswamy Puttaswamy, Amrit Puzari, Naresh A. Rajpurohit, Ramasamy Ramaraj, Isha Saini, Ahmed M. Salama, Zainab Shakoor, Paria Sharafi-Badr, Paul R. Shearing, Vinamrita Singh, Georgia Sourkouni, Lutfu S. Sua, R. Sujith, Mohammad Tabish, Soner Çakar, Ege Tini Tunca, Mahmut Özacar, Christos Vaitsis, Cédric Vancaeyzeele, Morena S. Xaba, Dharmendra Kumar Yadav, Prahlad Yadav, Ghulam Yasin, Luyi Zhou, Jian Zhu, Shuang Zong, and Antonis A. Zorpas

Published
2022
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8. Developing High-Performance Flexible Zinc Ion Capacitors from Agricultural Waste-Derived Carbon Sheets

Author

Pooja B. Naik, Prahlad Yadav, Radha Nagaraj, Rangaswamy Puttaswamy, Hemanth Kumar Beere, Uday Narayan Maiti, Chanchal Mondal, Nataraj Sanna Kotrappanavar, and Debasis Ghosh

Subjects
Renewable Energy, Sustainability and the Environment, General Chemical Engineering, TD Environmental technology. Sanitary engineering, Environmental Chemistry, General Chemistry, TP Chemical technology
Published
2022
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