Nanowired NiMoO4/NiSe2/MoSe2 prepared through in situ selenylation as a high performance supercapacitor electrode

Chengchao Wang; Datong Wu; Yong Qin; Yong Kong

doi:10.1039/D1CC00461A

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Nanowired NiMoO₄/NiSe₂/MoSe₂ prepared through in situ selenylation as a high performance supercapacitor electrode†

Chengchao Wang,^a Datong Wu,

^a Yong Qin

^a and Yong Kong

*^a

Author affiliations

* Corresponding authors

^a Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
E-mail: yzkongyong@cczu.edu.cn

Abstract

After in situ selenylation, hydrothermally synthesized NiMoO₄ was partially converted to NiSe₂ and MoSe₂, and the obtained NiMoO₄/NiSe₂/MoSe₂ nanowires were used as a supercapacitor electrode material. The specific capacitance of the nanowired NiMoO₄/NiSe₂/MoSe₂ was significantly higher than that of NiMoO₄ at a current density of 1 A g⁻¹ (955 vs. 489 F g⁻¹). NiMoO₄/NiSe₂/MoSe₂ also exhibited a high capacitance retention of 86.1% after 5000 cycles at 10 A g⁻¹. The high supercapacitive performance of NiMoO₄/NiSe₂/MoSe₂ can be ascribed to the obvious heterointerfaces, rich defects and remarkably increased electrical conductivity after in situ selenylation of NiMoO₄.

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Article information

DOI: https://doi.org/10.1039/D1CC00461A
Article type: Communication
Submitted: 26 Jan 2021
Accepted: 17 Mar 2021
First published: 18 Mar 2021

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Chem. Commun., 2021,57, 4019-4022

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Nanowired NiMoO₄/NiSe₂/MoSe₂ prepared through in situ selenylation as a high performance supercapacitor electrode

C. Wang, D. Wu, Y. Qin and Y. Kong, Chem. Commun., 2021, 57, 4019 DOI: 10.1039/D1CC00461A

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