Recent advances and key perspectives of in-situ studies for oxygen evolution reaction in water electrolysis  

作　　者：Yi Wang Zichen Xu Xianhong Wu Zhong-Shuai Wu 

机构地区：[1]State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China [2]University of Chinese Academy of Sciences,Shijingshan District,Beijing,100049,China [3]Dalian National Laboratory for Clean Energy,Chinese Academy of Sciences,Dalian,116023,China

出　　处：《Green Energy & Environment》2024年第10期1497-1517,共21页绿色能源与环境（英文版）

基　　金：support from National Natural Science Foundation of China(Grant Nos.22125903,22209174);the National Key R&D Program of China(Grants 2022YFA1504100);Dalian Innovation Support Plan for High Level Talents(2019RT09);Dalian National Laboratory For Clean Energy(DNL),CAS,DNL Cooperation Fund,CAS(DNL202016,DNL202019);DICP(DICP I2020032).

摘　　要：Electricity-driven water splitting to produce hydrogen is one of the most efficient ways to alleviate energy crisis and environmental pollution problems,in which the anodic oxygen evolution reaction(OER)is the key half-reaction of performance-limiting in water splitting.Given the complicated reaction process and surface reconstruction of the involved catalysts under actual working conditions,unraveling the real active sites,probing multiple reaction intermediates and clarifying catalytic pathways through in-situ characterization techniques and theoretical calculations are essential.In this review,we summarize the recent advancements in understanding the catalytic process,unlocking the water oxidation active phase and elucidating catalytic mechanism of water oxidation by various in-situ characterization techniques.Firstly,we introduce conventionally proposed traditional catalytic mechanisms and novel evolutionary mechanisms of OER,and highlight the significance of optimal catalytic pathways and intrinsic stability.Next,we provide a comprehensive overview of the fundamental working principles,different detection modes,applicable scenarios,and limitations associated with the in-situ characterization techniques.Further,we exemplified the in-situ studies and discussed phase transition detection,visualization of speciation evolution,electronic structure tracking,observation of reaction active intermediates,and monitoring of catalytic products,as well as establishing catalytic structure-activity relationships and catalytic mechanism.Finally,the key challenges and future perspectives for demystifying the water oxidation process are briefly proposed.

关 键 词：In-situ studies Water splitting Oxygen evolution reaction Catalytic mechanism 

分 类 号：TQ426[化学工程] TQ116.21