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

doi:10.1016/j.prime.2023.100182

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

Nuclear Materials Packaging, Transportat

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

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.

Original language	English
Article number	100182
Journal	e-Prime - Advances in Electrical Engineering, Electronics and Energy
Volume	4
DOIs	https://doi.org/10.1016/j.prime.2023.100182
State	Published - Jun 2023

Funding

Authors thank the Department of Chemistry, Mysore University, for providing FTIR and Raman spectroscopy data. K.M. would like to sincerely acknowledge the support received from the Energy and Environment Science and Technology department at the Idaho National Laboratory, USA. Furthermore, K.M. extends heartfelt acknowledgement to the distinguished Oak Ridge National Laboratory, USA, for their generous support. Authors thank the Department of Chemistry, Mysore University, for providing FTIR and Raman spectroscopy data. K.M. would like to sincerely acknowledge the support received from the Energy and Environment Science and Technology department at the Idaho National Laboratory, USA. Furthermore, K.M. extends heartfelt acknowledgement to the distinguished Oak Ridge National Laboratory, USA, for their generous support.

Keywords

Chronopotentiometry
Hybrid supercapacitor
KTaO
Nano cubes
rGO

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10.1016/j.prime.2023.100182

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Nandagudi, A., Nagarajarao, S. H., Patil, S. B., Kumar, V. G. D., Santosh, M. S., Gupta, A., Mondal, K., & Basavaraja, B. M. (2023). Porous potassium tantalate-reduced graphene oxide nano cube architecture for high performance hybrid supercapacitors. e-Prime - Advances in Electrical Engineering, Electronics and Energy, 4, Article 100182. https://doi.org/10.1016/j.prime.2023.100182

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abstract = "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.",

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AU - Nandagudi, Apurva

AU - Nagarajarao, Sumedha H.

AU - Patil, Shivaraj B.

AU - Kumar, V. G.Dileep

AU - Santosh, M. S.

AU - Gupta, Ankur

AU - Mondal, Kunal

AU - Basavaraja, Basavanakote M.

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N2 - 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.

AB - 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.

KW - Chronopotentiometry

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

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