燃料电池Fe/N/C氧还原催化剂近十年研究进展  

Research Progress of Fe/N/C Oxygen Reduction Reaction Catalyst for Fuel Cell in Past Decade

作　　者：谢敏[1] 晁自胜[1] 

机构地区：[1]长沙理工大学,湖南 长沙

出　　处：《材料科学》2020年第9期766-785,共20页Material Sciences

摘　　要：燃料电池阴极贵金属铂(Pt)基催化剂的高成本阻碍了其大规模商业化应用。铁和氮共掺杂的碳材料(Fe/N/C)在酸性条件下具有较高的活性和四电子选择性,使其成为最有可能替代铂的催化,近年来已经成为研究热点。为提高Fe/N/C催化剂的活性,创新策略被不断提出,金属有机框架(MOFs)和单原子催化剂(SACs)开始运用于催化剂的探究,Fe/N/C催化剂展现出更加优异的性能。由于氧还原过程的复杂以及热解产物的成分不确定性,Fe/N/C的催化机理和活性位点一直存在争议。近年来随着科技的进步,各种原位和非原位技术的运用,Fe/N/C的催化机理和活性位点逐渐清晰化。本文视角独特,详尽地介绍Fe/N/C近十年来研究进展,并且指出存在的主要问题,希望能为该类催化剂的优化设计指明方向。The expensive Pt-based catalyst for fuel cell cathode hinders its large-scale commercial application. Due to their high activity and four electron selectivity, iron and nitrogen Co-doped carbon materials (Fe/N/C) have been considered as the most likely catalyst to replace platinum. In recent years, it has become a research hot-spot. In order to improve the activity of Fe/N/C catalyst, innovative strategies have been put forward constantly. Metal organic framework (MOFs) and single atom catalyst (SACS) have been used in the exploration of catalyst research. Fe/N/C catalyst shows more excellent performance. The catalytic mechanism and active sites structure of Fe/N/C have been controversial for a long time because of the complex ORR path and uncertainty of pyrolysis products composition. In recent years, with the development of science and technology, the catalytic mechanism and active sites of Fe/N/C are becoming much clearer. This paper has a unique perspective. We introduce the research progress of Fe/N/C in past decade in detail, and the main problems are pointed out, hoping to point out the direction for the optimal design of this kind of catalyst.

关 键 词：燃料电池 氧还原催化剂 Fe/N/C 金属有机框架 单原子催化剂 

分 类 号：O64[理学—物理化学]