文献类型：期刊文献

英文题名：Oxygen Evolution Electrocatalysts for the Proton Exchange Membrane Electrolyzer: Challenges on Stability

作者：Lin, Hao Yang[1];Lou, Zhen Xin[1];Ding, Yeliang[2];Li, Xiaoxia[2];Mao, Fangxin[1];Yuan, Hai Yang[1];Liu, Peng Fei[1];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]China Gen Nucl New Energy Holdings Co Ltd, Beijing 100071, Peoples R China

年份：2022

卷号：6

期号：12

外文期刊名：SMALL METHODS

收录：;EI(收录号：20224513093351);WOS:【SCI-EXPANDED(收录号:WOS:000878864600001)】；

基金：H.Y.L. and Z.X.L. contributed equally to this work. This work was financially supported by the Key Program of National Natural Science Foundation of China (22239001), the International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (51920105003), the National Natural Science Funds for Distinguished Young Scholars (51725201), the Innovation Program of Shanghai Municipal Education Commission (E00014), the National Natural Science Foundation of China (51902105), the Science and Technology Commission of Shanghai Municipality (21DZ1207101, 22ZR1416400), and the Shanghai Engineering Research Centre of Hierarchical Nanomaterials (18DZ2252400).

语种：英文

外文关键词：electrocatalysts; in situ/operando characterization; oxygen evolution reaction; proton exchange membrane electrolyzer; stability

摘要：Hydrogen generated by proton exchange membrane (PEM) electrolyzer holds a promising potential to complement the traditional energy structure and achieve the global target of carbon neutrality for its efficient, clean, and sustainable nature. The acidic oxygen evolution reaction (OER), owing to its sluggish kinetic process, remains a bottleneck that dominates the efficiency of overall water splitting. Over the past few decades, tremendous efforts have been devoted to exploring OER activity, whereas most show unsatisfying stability to meet the demand for industrial application of PEM electrolyzer. In this review, systematic considerations of the origin and strategies based on OER stability challenges are focused on. Intrinsic deactivation of the material and the extrinsic balance of plant-induced destabilization are summarized. Accordingly, rational strategies for catalyst design including doping and leaching, support effect, coordination effect, strain engineering, phase and facet engineering are discussed for their contribution to the promoted OER stability. Moreover, advanced in situ/operando characterization techniques are put forward to shed light on the OER pathways as well as the structural evolution of the OER catalyst, giving insight into the deactivation mechanisms. Finally, outlooks toward future efforts on the development of long-term and practical electrocatalysts for the PEM electrolyzer are provided.