Hao Zhuo, Ma Yangyang, Chen Yisong, Fu Pei, Wang Pengyu
School of Automobile, Chang'an University, Xi'an 710064, China.
College of Automotive Engineering, Jilin University, Changchun 130012, China.
Nanomaterials (Basel). 2022 Sep 24;12(19):3331. doi: 10.3390/nano12193331.
The oxygen reduction reaction (ORR) is one of the crucial energy conversion reactions in proton exchange membrane fuel cells (PEMFCs). Low price and remarkable catalyst performance are very important for the cathode ORR of PEMFCs. Among the various explored ORR catalysts, non-noble metals (transition metal: Fe, Co, Mn, etc.) and N co-doped C (M-N-C) ORR catalysts have drawn increasing attention due to the abundance of these resources and their low price. In this paper, the recent advances of single-atom catalysts (SACs) and double-atom catalysts (DACs) in the cathode ORR of PEMFCs is reviewed systematically, with emphasis on the synthesis methods and ORR performance of the catalysts. Finally, challenges and prospects are provided for further advancing non-noble metal catalysts in PEMFCs.
氧还原反应（ORR）是质子交换膜燃料电池（PEMFC）中关键的能量转换反应之一。低价格和卓越的催化剂性能对于PEMFC的阴极ORR非常重要。在各种已探索的ORR催化剂中，非贵金属（过渡金属：Fe、Co、Mn等）和N共掺杂C（M-N-C）ORR催化剂因其资源丰富且价格低廉而受到越来越多的关注。本文系统综述了单原子催化剂（SACs）和双原子催化剂（DACs）在PEMFC阴极ORR中的最新进展，重点介绍了催化剂的合成方法和ORR性能。最后，针对进一步推进PEMFC中非贵金属催化剂的发展提出了挑战和前景。
