析氧
电解水
材料科学
电解
分解水
电催化剂
本体电解
电化学
化学物理
纳米技术
化学
催化作用
化学工程
电解质
物理化学
电极
生物化学
光催化
工程类
作者
Qian Zhang,Xuexue Wang,Xiaomeng Lv
标识
DOI:10.1002/cssc.202401663
摘要
High‐entropy oxides (HEOs), similar to high‐entropy materials (HEMs), have "four‐core effects", i.e., high‐entropy effect, delayed diffusion effect, lattice distortion effect and cocktail effect, which have attracted more and more attention in the scientific field of renewable energy technology due to their unique structural characteristics, variable chemical composition and corresponding functional properties. HEOs have become potential candidates for electrocatalytic oxygen evolution reaction (OER), which is a key half reaction for electrolytic CO2, nitrogen reduction, and water electrolysis. However, the precise synthesis of HEOs with a wide range of components and structures is challenging, not to mention their active and stable operation for OER. In this paper, we review the recent advancements in the electrocatalytic oxygen evolution facilitated by HEOs in water electrolysis. We analyze these developments from the perspectives of activity and stability in acid and alkaline conditions, respectively. Furthermore, we summarize the design from the aspect of element composition, structure, morphology, and catalyst‐support interactions, along with related reaction mechanism of HEOs. Additionally, we discuss the current challenges faced by HEOs in the field of OER and suggest potential directions for the future development of HEOs beyond water electrolysis application.
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