析氧
电催化剂
电化学
催化作用
价(化学)
分解水
材料科学
氨生产
过渡金属
亚稳态
化学工程
纳米技术
化学
电极
物理化学
工程类
光催化
生物化学
有机化学
作者
Qiao Chen,Yingying Hao,Chuanbao Cao,Jiatao Zhang
出处
期刊:Nanoscale
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:15 (2): 450-460
被引量:12
摘要
As an important semi-reaction process in electrocatalysis, oxygen evolution reaction (OER) is closely associated with electrochemical hydrogen production, CO2 electroreduction, electrochemical ammonia synthesis and other reactions, which provide electrons and protons for the related applications. Considering their fundamental mechanism, metastable high-valence metal sites have been identified as real, efficient OER catalytic sites from the recent observation by in situ characterization technology. Herein, we review the transformation mechanism of high-valence metal sites in the OER process, particularly transition metal materials (Co- and Ni-based). In particular, research progress in the transformation process and role of high-valence metal sites to optimize OER performance is summarized. The key challenges and prospects of the design of high-efficiency OER catalysts based on the above-mentioned mechanism and some new in situ characterizations are also discussed.
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