Synthesis of dense MoS2 nanosheet layers on hollow carbon spheres and their applications in supercapacitors and the electrochemical hydrogen evolution reaction

Weiwei Liu; Menghua Zhu; Jinghua Liu; Wenjuan Hu; Xin Li; Jian Liu

doi:10.1039/C8QI00562A

Synthesis of dense MoS₂ nanosheet layers on hollow carbon spheres and their applications in supercapacitors and the electrochemical hydrogen evolution reaction†

Weiwei Liu,^a Menghua Zhu,^a Jinghua Liu,^a Wenjuan Hu,^b Xin Li

*^ac and Jian Liu

*^b

Author affiliations

* Corresponding authors

^a Department of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150090, China
E-mail: lixin@hit.edu.cn

^b College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, P.R. China
E-mail: liujian@qust.edu.cn

^c State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China

Abstract

Herein, we report the synthesis of hybrid nanostructures obtained by densely growing MoS₂ nanosheet layers on hydrophobic hollow carbon spheres (abbreviated as MoS₂-HCS) through a solvothermal method. The morphologies and compositions of the MoS₂-HCS hybrid are well investigated. The electrochemical performance of the MoS₂-HCS sphere is investigated in both supercapacitors and the hydrogen evolution reaction. The MoS₂-HCS exhibits a larger specific capacitance of 334 F g⁻¹ than the bare MoS₂ of 204 F g⁻¹ at 1 A g⁻¹, an improved rate capability of 86% from 1 to 20 A g⁻¹ and a stable cycling performance of 87% capacitance retention after 5000 cycles when assembled in a supercapacitor. In addition, MoS₂-HCS also show enhanced electrocatalytic activity for the electrochemical hydrogen evolution reaction in acidic media.

This article is part of the themed collection: Inorganic Chemistry Frontiers HOT articles for 2018

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Article information

DOI: https://doi.org/10.1039/C8QI00562A
Article type: Research Article
Submitted: 14 Jun 2018
Accepted: 19 Jul 2018
First published: 19 Jul 2018

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Inorg. Chem. Front., 2018,5, 2198-2204

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Synthesis of dense MoS₂ nanosheet layers on hollow carbon spheres and their applications in supercapacitors and the electrochemical hydrogen evolution reaction

W. Liu, M. Zhu, J. Liu, W. Hu, X. Li and J. Liu, Inorg. Chem. Front., 2018, 5, 2198 DOI: 10.1039/C8QI00562A

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