文献类型：期刊文献

英文题名：Recent Progress in Balancing the Activity, Durability, and Low Ir Content for Ir-Based Oxygen Evolution Reaction Electrocatalysts in Acidic Media

作者：Wang, Huimin[1,2];Li, Xinyi[1];Zhang, Guozhu[3];Gu, Zihan[1];Chen, Hao[1];Wei, Guanghua[1];Shen, Shuiyun[2];Cheng, Junfang[1];Zhang, Junliang[2]

机构：[1]Shanghai Jiao Tong Univ, Paris Elite Inst Technol, Shanghai 200240, Peoples R China;[2]Shanghai Jiao Tong Univ, Inst Fuel Cells, Sch Mech Engn, Shanghai 200240, Peoples R China;[3]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai 200237, Peoples R China

年份：2025

卷号：21

期号：6

外文期刊名：SMALL

收录：;EI(收录号：20245217572588);WOS:【SCI-EXPANDED(收录号:WOS:001381608100001)】；

基金：The authors gratefully acknowledge the supports from the National Natural Science Foundation of China (No. 22372101) and Natural Science Foundation of Shanghai Municipality General Project (No. 24ZR1430400).

语种：英文

外文关键词：acidic OER; activity and durability; Ir-based catalyst; latest OER mechanism; LOM pathway verification; structure-activity relationship

摘要：Proton exchange membrane (PEM) electrolysis faces challenges associated with high overpotential and acidic environments, which pose significant hurdles in developing highly active and durable electrocatalysts for the oxygen evolution reaction (OER). Ir-based nanomaterials are considered promising OER catalysts for PEM due to their favorable intrinsic activity and stability under acidic conditions. However, their high cost and limited availability pose significant limitations. Consequently, numerous studies have emerged aimed at reducing iridium content while maintaining high activity and durability. Furthermore, the research on the OER mechanism of Ir-based catalysts has garnered widespread attention due to differing views among researchers. The recent progress in balancing activity, durability, and low iridium content in Ir-based catalysts is summarized in this review, with a particular focus on the effects of catalyst morphology, heteroatom doping, substrate introduction, and novel structure development on catalyst performance from four perspectives. Additionally, the recent mechanistic studies on Ir-based OER catalysts is discussed, and both theoretical and experimental approaches is summarized to elucidate the Ir-based OER mechanism. Finally, the perspectives on the challenges and future developments of Ir-based OER catalysts is presented.