Applied Sciences | |
Electrocatalysis for the Oxygen Evolution Reaction in Acidic Media: Progress and Challenges | |
Xiwen He1  Hui-Ying Qu1  Shuai Hou2  Yibo Wang2  | |
[1] Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China;Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; | |
关键词: water electrolysis; acidic oxygen evolution reaction; electrocatalyst; OER activity; metal–support interaction; electronic effect; | |
DOI : 10.3390/app11104320 | |
来源: DOAJ |
【 摘 要 】
The oxygen evolution reaction (OER) is the efficiency-determining half-reaction process of high-demand, electricity-driven water splitting due to its sluggish four-electron transfer reaction. Tremendous effects on developing OER catalysts with high activity and strong acid-tolerance at high oxidation potentials have been made for proton-conducting polymer electrolyte membrane water electrolysis (PEMWE), which is one of the most promising future hydrogen-fuel-generating technologies. This review presents recent progress in understanding OER mechanisms in PEMWE, including the adsorbate evolution mechanism (AEM) and the lattice-oxygen-mediated mechanism (LOM). We further summarize the latest strategies to improve catalytic performance, such as surface/interface modification, catalytic site coordination construction, and electronic structure regulation of catalytic centers. Finally, challenges and prospective solutions for improving OER performance are proposed.
【 授权许可】
Unknown