High-entropy catalysts for electrochemical water-electrolysis of hydrogen evolution and oxygen evolution reactions  

作　　者：Simiao SHA Riyue GE Ying LI Julie M.CAIRNEY Rongkun ZHENG Sean LI Bin LIU Jiujun ZHANG Wenxian LI 

机构地区：[1]School of Materials Science and Engineering,Shanghai University,Shanghai 200444,China [2]School of Chemical and Environmental Engineering,Anhui Polytechnic University,Wuhu 241000,China [3]Australian Centre for Microscopy and Microanalysis,School of Aerospace,Mechanical and Mechatronic Engineering,The University of Sydney,Sydney NSW 2006,Australia [4]School of Physics,The University of Sydney,Sydney NSW 2006,Australia [5]School of Materials Science and Engineering,UNSW Materials&Manufacturing Futures Institute,University of New South Wales,Sydney NSW 2052,Australia [6]College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China

出　　处：《Frontiers in Energy》2024年第3期265-290,共26页能源前沿（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.51572166);the Program for Eastern Scholar(Grant No.TP2014041);the China Postdoctoral Science Foundation(Grant No.2021M702073).

摘　　要：High entropy materials (HEMs) have developed rapidly in the field of electrocatalytic water-electrolysis for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) due to their unique properties. In particular, HEM catalysts are composed of many elements. Therefore, they have rich active sites and enhanced entropy stability relative to single atoms. In this paper, the preparation strategies and applications of HEM catalysts in electrochemical water-electrolysis are reviewed to explore the stabilization of HEMs and their catalytic mechanisms as well as their application in support green hydrogen production. First, the concept and four characteristics of HEMs are introduced based on entropy and composition. Then, synthetic strategies of HEM catalysts are systematically reviewed in terms of the categories of bottom-up and top-down. The application of HEMs as catalysts for electrochemical water-electrolysis in recent years is emphatically discussed, and the mechanisms of improving the performance of electrocatalysis is expounded by combining theoretical calculation technology and ex-situ/in situ characterization experiments. Finally, the application prospect of HEMs is proposed to conquer the challenges in HEM catalyst fabrications and applications.

关 键 词：high-entropy ELECTROCATALYSIS synthetic methods water-electrolysis hydrogen and oxygen evolutions 

分 类 号：TQ426[化学工程] TQ116.2[一般工业技术—材料科学与工程] TB383.1