Facile One-Pot Synthesis of NiCo₂Se₄-RGO on Ni Foam for High Performance Hybrid Supercapacitors

Author

Bahareh Golrokh Amin
Jahangir Masud
Manashi Nath, Missouri University of Science and TechnologyFollow

Abstract

A facile, innovative synthesis for the fabrication of NiCo₂Se₄-rGO on a Ni foam nanocomposite via a simple hydrothermal reaction is proposed. The as-prepared NiCo₂Se₄-rGO@Ni foam electrode was tested through pxrd, TEM, SEM, and EDS to characterize the morphology and the purity of the material. The bimetallic electrode exhibited outstanding electrochemical performance with a high specific capacitance of 2038.55 F g^-1 at 1 A g^-1. NiCo₂Se₄-rGO@Ni foam exhibits an extensive cycling stability after 1000 cycles by retaining 90% of its initial capacity. A superior energy density of 67.01 W h kg^-1 along with a high power density of 903.61 W kg^-1 further proved the high performance of this electrode towards hybrid supercapacitors. The excellent electrochemical performance of NiCo₂Se₄-rGO@Ni foam can be explained through the high electrocatalytic activity of NiCo₂Se₄ in combination with reduced graphene oxide which increases conductivity and surface area of the electrode. This study proved that NiCo₂Se₄-rGO@Ni foam can be utilized as a high energy density-high power density electrode in energy storage applications.

Recommended Citation

B. G. Amin et al., "Facile One-Pot Synthesis of NiCo₂Se₄-RGO on Ni Foam for High Performance Hybrid Supercapacitors," RSC Advances, vol. 9, no. 65, pp. 37939 - 37946, Royal Society of Chemistry, Nov 2019.

The definitive version is available at https://doi.org/10.1039/c9ra06439g

Department(s)

Chemistry

Research Center/Lab(s)

Center for Research in Energy and Environment (CREE)

Comments

This work was partially supported through NSF funds (DMR 1710313).

Keywords and Phrases

Cobalt compounds; Electrochemical electrodes; Foams; Graphene; Hydrothermal synthesis; Morphology; Nickel; Selenium compounds; Supercapacitor, Electrocatalytic activity; Electrochemical performance; Energy storage applications; High power density electrodes; High specific capacitances; Hybrid supercapacitors; Hydrothermal reaction; Reduced graphene oxides, Nickel compounds

International Standard Serial Number (ISSN)

2046-2069

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2019 Royal Society of Chemistry, All rights reserved.

Creative Commons Licensing

This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 License

Publication Date

21 Nov 2019