Volume 18, Issue 20 2200248
Research Article

All Transition Metal Selenide Composed High-Energy Solid-State Hybrid Supercapacitor

Pragati A. Shinde

Corresponding Author

Pragati A. Shinde

Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah, 27272 United Arab Emirates

E-mail: [email protected]; [email protected]; [email protected]

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Nilesh R. Chodankar

Nilesh R. Chodankar

Department of Energy and Materials Engineering, Dongguk University, Seoul, 04620 South Korea

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Mohammad Ali Abdelkareem

Corresponding Author

Mohammad Ali Abdelkareem

Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah, 27272 United Arab Emirates

Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, 27272 United Arab Emirates

E-mail: [email protected]; [email protected]; [email protected]

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Swati J. Patil

Swati J. Patil

Department of Energy and Materials Engineering, Dongguk University, Seoul, 04620 South Korea

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Young-Kyu Han

Young-Kyu Han

Department of Energy and Materials Engineering, Dongguk University, Seoul, 04620 South Korea

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Khaled Elsaid

Khaled Elsaid

Chemical Engineering Department, Texas A&M University, College Station, TX, 77843-3122 USA

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Abdul Ghani Olabi

Corresponding Author

Abdul Ghani Olabi

Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah, 27272 United Arab Emirates

Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, 27272 United Arab Emirates

Mechanical Engineering and Design, School of Engineering and Applied Science, Aston University, Aston Triangle, Birmingham, B4 7ET UK

E-mail: [email protected]; [email protected]; [email protected]

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First published: 20 April 2022
Citations: 31

Abstract

Transition metal selenides (TMSs) have enthused snowballing research and industrial attention due to their exclusive conductivity and redox activity features, holding them as great candidates for emerging electrochemical devices. However, the real-life utility of TMSs remains challenging owing to their convoluted synthesis process. Herein, a versatile in situ approach to design nanostructured TMSs for high-energy solid-state hybrid supercapacitors (HSCs) is demonstrated. Initially, the rose-nanopetal-like NiSe@Cu2Se (NiCuSe) positive electrode and FeSe nanoparticles negative electrode are directly anchored on Cu foam via in situ conversion reactions. The complementary potential windows of NiCuSe and FeSe electrodes in aqueous electrolytes associated with the excellent electrical conductivity results in superior electrochemical features. The solid-state HSCs cell manages to work in a high voltage range of 0–1.6 V, delivers a high specific energy density of 87.6 Wh kg−1 at a specific power density of 914.3 W kg−1 and excellent cycle lifetime (91.3% over 10 000 cycles). The innovative insights and electrode design for high conductivity holds great pledge in inspiring material synthesis strategies. This work offers a feasible route to develop high-energy battery-type electrodes for next-generation hybrid energy storage systems.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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