综述了近些年来单原子催化剂的一些常用的制备方法和制备过程中提升催化剂活性所亟需解决的问题以及目前对单原子催化剂的研究分类，同时也介绍了单原子催化剂在质子交换膜燃料电池（PEMFC）中的应用，包括氧气的电还原反应和有机小分子的电氧化反应以及对单原子催化剂的一些展望。

In the research of proton exchange membrane fuel cells (PEMFC),the catalysts with high catalytic activity,low cost and high stability become the research hotspots.Single-atom catalysts can have a higher catalytic performance due to their high metal utilization.This paper reviews some common preparation methods of single-atom catalysts in recent years and the problems that need to be solved to improve the activity of catalysts in the preparation process,as well as the current research classification of single-atom catalysts.It also introduces the application of single-atom catalysts in PEMFC,including electroreduction of oxygen and electrooxidation of small organic molecules as well as some prospects for single-atom catalysts.

周兆飞(1995-),男,硕士生