Porous potassium tantalate-reduced graphene oxide nano cube architecture for high performance hybrid supercapacitors

Apurva Nandagudi; Sumedha H. Nagarajarao; Shivaraj B. Patil; V.G. Dileep Kumar; M.S. Santosh; Ankur Gupta; Kunal Mondal; Basavanakote M. Basavaraja

e-Prime: Advances in Electrical Engineering, Electronics and Energy (Jun 2023)

Porous potassium tantalate-reduced graphene oxide nano cube architecture for high performance hybrid supercapacitors

Apurva Nandagudi,
Sumedha H. Nagarajarao,
Shivaraj B. Patil,
V.G. Dileep Kumar,
M.S. Santosh,
Ankur Gupta,
Kunal Mondal,
Basavanakote M. Basavaraja

Affiliations

Apurva Nandagudi: Department of Chemistry (Science and Humanities), PES University, 100 Ft. Ring Road, BSK 3rd Stage, Bengaluru, 560085, India
Sumedha H. Nagarajarao: Department of Chemistry, College of Engineering and Technology, Srinivas University, Mukka, Mangalore, 574146, India
Shivaraj B. Patil: Department of Chemistry, Tunghai University, Taichung 40704, Taiwan
V.G. Dileep Kumar: Department of Chemistry (Science and Humanities), PES University, 100 Ft. Ring Road, BSK 3rd Stage, Bengaluru, 560085, India; Coal to Hydrogen Energy for Sustainable Solutions (CHESS) Division, CSIR - Central Institute of Mining and Fuel Research (CIMFR), Digwadih Campus, PO: FRI, Dhanbad - 828108, Jharkhand, India
M.S. Santosh: Coal to Hydrogen Energy for Sustainable Solutions (CHESS) Division, CSIR - Central Institute of Mining and Fuel Research (CIMFR), Digwadih Campus, PO: FRI, Dhanbad - 828108, Jharkhand, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
Ankur Gupta: Department of Mechanical Engineering, Indian Institute of Technology, Jodhpur, India
Kunal Mondal: Materials Science and Engineering Department, Idaho National Laboratory, Idaho Falls, ID 83415, United States; Department of Civil & Environmental Engineering, Idaho State University, Pocatello, ID 83209, United States; Nuclear Energy and Fuel Cycle Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37830, United States
Basavanakote M. Basavaraja: Department of Chemistry (Science and Humanities), PES University, 100 Ft. Ring Road, BSK 3rd Stage, Bengaluru, 560085, India; Corresponding author.

Journal volume & issue: Vol. 4
p. 100182

Abstract

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Energy storage has always been a major concern in the present-day situation. Advanced energy storage devices are batteries, supercapacitor and solar cells. However, advancements have been noteworthy in the field of high-performance hybrid supercapacitors. On this note, we have fabricated a hybrid supercapacitor electrode material Potassium tantalate nano cube (KT NCs) and its reduced graphene oxide composite (KT-rGO NCs) and tested its electrochemical performance. The materials showed high performances with specific capacitance of 565 F/g for KT NCs and 850 F/g for KT-rGO NCs respectively. Energy densities of both KT NCs & KT-rGO NCs are 28.24 Wh/Kg and 29.50 Wh/kg with good retention capacities. Further detailed study of both KT NCs and KT-rGO NCs are carried out with characterization techniques like XRD, FTIR, BET, Raman and HRTEM for structural analysis and electrochemical measurements to analyse various parameters pertaining to its charge storage capacity.

Published in e-Prime: Advances in Electrical Engineering, Electronics and Energy

ISSN: 2772-6711 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://www.journals.elsevier.com/e-prime

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