近些年，化石燃料快速消耗，其燃烧产生的二氧化碳、二氧化硫等产物也带来了酸雨、全球气候变暖等不良后果。因此，开发可持续、可再生的清洁能源就变得尤为重要。氢气作为理想的能源，可以由电解水分解得来。目前，商用的产氢反应（ HER）催化剂主要为贵金属基催化剂，具有造价高昂、稳定性差等缺点。因此，寻求价格低廉、效率高的催化剂就变得非常重要。本文将主要对电解水技术的发展与分类， TMDs 纳米片的结构、性质及其制备方法， TMDs 的结构与催化效率的关系，国内外提升二维 TMDs 催化性能的研究方向四个方向进行调研。通过调研，将有助于了解金属硫系化合物的结构与其催化效率的关系，分析催化剂在实际应用过程的稳定性等性质，总结改变催化剂催化性能的不同方法，从而提出 TMDs 作为 HER 催化剂需要研究并改进的方向。

In recent years, the rapid consumption of fossil fuels, the combustion of carbon dioxide, sulfur dioxide and other products also brought acid rain, global warming and other adverse consequences. Therefore, the development of sustainable, renewable and clean energy becomes particularly important. Hydrogen, the ideal energy source, can be broken down by electrolysis of water. At present, commercial catalysts for hydrogen production reaction (HER) are mainly noble metal based catalysts, which have disadvantages such as high cost and poor stability. Therefore, it is very important to find low cost and high efficiency catalyst. 
This paper will mainly investigate the development and classification of electrolytic water technology, the structure, properties and preparation methods of TMDs nanosheets, the relationship between the structure and catalytic efficiency of TMDs, and the research directions of improving the catalytic performance of twodimensional TMDs at home and abroad. The investigation will help to understand the relationship between the structure of metallic sulfur compounds and their catalytic efficiency, analyze the stability and other properties of the catalyst in the practical application process, summarize different methods to change the catalytic performance of the catalyst, so as to propose the direction of research and improvement of TMDs as HER catalyst.