Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (2): 475.doi: 10.7503/cjcu20200652

• Review • Previous Articles     Next Articles

Research Progress on Doping of Molybdenum Disulfide and Hydrogen Evolution Reaction

CHEN Xiaoyu, YU Ranbo()   

  1. Department of Physical Chemistry,School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China
  • Received:2020-09-04 Online:2021-02-10 Published:2020-12-28
  • Contact: YU Ranbo E-mail:ranboyu@ustb.edu.cn
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(51932001);the National Key Research and Development Program of China(2018YFA0705003)

Abstract:

Hydrogen production by electrocatalytic water splitting is a production process that can form a closed loop. The starting material and by-products are water. The process is clean and pollution-free, which is a highly promising strategy for hydrogen production. One of the bottlenecks restricting its development is the expensive Pt-based precious metal catalyst. To promote the popularization of electrocatalytic water splitting to produce hydrogen, it is urgent to develop low-cost and non-precious metal catalysts. Among the many alternative non-precious metal catalytic materials, nano-layered molybdenum disulfide(MoS2) has attracted widespread attention due to its predictable catalytic effect, abundant reserves, and low price. However, the layered structure 2H phase MoS2, which is easy to obtain under normal conditions, has a large area of the ??basal surface that is inert in HER catalysis, only a small number of active sites exist at the edge of the sheet, and the conductivity is poor, so it is not enough to replace the Pt-based catalyst. It is an important task to increase the number of active sites and to improve its conductivity, and has become an urgent problem to be solved. On the other hand, although 1T-phase MoS2 has high activity and good conductivity, it has the problems of difficulty in preparation and poor stability. Given this, a lot of work has been done to improve the activity and stability of nano-MoS2 by doping modification. In this review, we summarized and discussed the methods and mechanisms of the doping modification of non-precious metal nano-MoS2 catalysts and the related research on the performance of electrocatalytic hydrolysis for hydrogen production. As a typical non-precious metal water electrolysis hydrogen evolution catalyst, MoS2 has great development potential. We believe that this review can provide a useful reference to the research and development of related non-precious metal catalysts.

Key words: Electrocatalytic hydrogen evolution, Molybdenum disulfide(MoS2), Doping, Defect, Two- dimensional material

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