J. Mater. Sci. Technol. ›› 2021, Vol. 95: 70-77.DOI: 10.1016/j.jmst.2021.04.016

• Research Article • Previous Articles     Next Articles

Hierarchical Ni3S4@MoS2 nanocomposites as efficient electrocatalysts for hydrogen evolution reaction

Yuxi Rena,b, Shengli Zhub,c,d,e,**(), Yanqin Liangb,c, Zhaoyang Lib,c, Shuilin Wub,c, Chuntao Changa,*(), Shuiyuan Luoe, Zhenduo Cuib,*()   

  1. aSchool of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, China
    bSchool of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
    cTianjin Key Laboratory of Composite and Functional Materials, Tianjin 300350, China
    dSchool of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
    eCollege of Chemistry Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, China
  • Received:2021-02-26 Revised:2021-04-07 Accepted:2021-04-14 Published:2021-12-30 Online:2021-05-25
  • Contact: Shengli Zhu,Chuntao Chang,Zhenduo Cui
  • About author:zdcui@tju.edu.cn (Z. Cui).
    * E-mail addresses: changct@dgut.edu.cn (C. Chang),
    ** School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China. E-mail addresses: slzhu@tju.edu.cn (S. Zhu),

Abstract:

Hydrogen evolution reaction (HER) through water splitting is a promising way to solve the energy shortage. Noble-metal-free HER electrocatalysts with high efficiency is very important for practical applications. Herein, we prepare the Ni3S4@MoS2 electrocatalyst on carbon cloth (CC) through a two-step hydrothermal process. The Ni3S4 nanorods are uniformly integrated with the MoS2 nanosheets, forming a hierarchical structure and heterogeneous interfaces. The fast electron transfer on the interface enhances the kinetics of catalytic reaction. The hierarchical structure provides more exposed active sites. The Ni3S4@MoS2/CC exhibits good catalytic activity and long-term stability for HER. This work provided a practicable strategy to develop efficient electrocatalysts for HER in alkaline media.

Key words: Heterogeneous interfaces, Hierarchical structure, Metal sulfides, Alkaline hydrogen evolution reaction