高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (2): 475-491.doi: 10.7503/cjcu20200652

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纳米二硫化钼的掺杂及催化电解水产氢的研究进展

陈晓煜, 于然波()   

  1. 北京科技大学冶金与生态工程学院物理化学系, 北京 100083
  • 收稿日期:2020-09-04 出版日期:2021-02-10 发布日期:2020-12-28
  • 通讯作者: 于然波 E-mail:ranboyu@ustb.edu.cn
  • 基金资助:
    国家自然科学基金(批准号(51932001);51872024)和国家重点研发计划项目(2018YFA0705003)

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)

摘要:

电催化水分解制氢是可以形成闭环的生产过程, 起始原料与副产物均为水、 过程清洁无污染, 是极具希望的产氢策略. 目前制约其发展的瓶颈之一是价格昂贵的Pt基贵金属催化剂. 为推动电催化分解水制氢的普及, 亟待开发低成本非贵金属催化剂. 在众多备选非贵金属催化材料中, 纳米层状结构二硫化钼(MoS2)因催化效果可期、 价格低而获得了广泛关注. 然而, 通常条件下易于获得的层状结构2H相MoS2大面积的基面部分显示惰性, 仅在片层边缘处存在少量活性位点, 且导电性较差, 因而尚不能替代Pt基催化剂, 而如何增加其活性位点数量和提高其导电性成为亟待解决的问题; 另一方面, 1T相MoS2虽然活性高、 导电性好, 但却存在制备困难及稳定性差的问题. 鉴于此, 研究者通过对纳米MoS2进行掺杂改性实现了其活性与稳定性的有效提升. 本文对非贵金属纳米MoS2催化剂掺杂改性的方法、 机理及其电催化水解制氢性能的相关研究进行了总结与讨论. 作为典型的非贵金属电解水析氢催化剂, MoS2具有巨大发展潜力, 本文能够对相关非贵金属催化剂的研发提供有益的参考.

关键词: 电催化析氢, 二硫化钼, 掺杂, 缺陷, 二维材料

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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