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Nano Research 2023, 16(4): 4411-4437 https://doi.org/10.1007/s12274-022-5207-4
Review Article | Issue | Published: 03 December 2022

High entropy materials based electrocatalysts for water splitting: Synthesis strategies, catalytic mechanisms, and prospects

Show Author's Information Xiumin Li1,  Yifan Zhou2,  Changrui Feng3,  Ran Wei1,  Xiaogang Hao4,  Keyong Tang1( ),  Guoqing Guan2,3,5( )
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
Graduate School of Sustainable Community Studies, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
Graduate School of Science and Technology, Hirosaki University, 3-Bunkyocho, Hirosaki 036-8561, Japan
Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Energy Conversion Engineering Laboratory, Institute of Regional Innovation, Hirosaki University, 3-Bunkyocho, Hirosaki 036-8561, Japan
Keywords:
water electrolysis, synthesis strategies, high entropy electrocatalysts, catalytic mechanisms, prospects
Topics:
Electrolysis
Cite this article:
Li X, Zhou Y, Feng C, et al. High entropy materials based electrocatalysts for water splitting: Synthesis strategies, catalytic mechanisms, and prospects. Nano Research, 2023, 16(4): 4411-4437. https://doi.org/10.1007/s12274-022-5207-4
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Abstract Full text About this article

Among various electrocatalysts, high entropy materials (HEMs) have attracted great attention due to the distinctive designing concept and unique properties with captivating electrocatalytic activity and stability. To date, HEMs have been a new family of advanced electrocatalysts in the research field of water electrolysis. In this work, the structural features and synthesis strategies of high entropy catalysts are reviewed, especially, their performances for catalyzing hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in water electrolysis are presented, in which the crucial roles of structure, composition, multi-sites synergy, and “four core effects” for enhancing catalytic activity, stability, and resistance of electrochemical corrosion are introduced. Besides, the design tactics, main challenges, and future prospects of HEM-based electrocatalysts for HER and OER are discussed. It is expected to provide valuable information for the development of low-cost efficient HEM-based electrocatalysts in the field of water electrolysis.


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About this article

High entropy materials based electrocatalysts for water splitting: Synthesis strategies, catalytic mechanisms, and prospects

Show Author's information Xiumin Li1, Yifan Zhou2, Changrui Feng3, Ran Wei1, Xiaogang Hao4, Keyong Tang1( ), Guoqing Guan2,3,5( )
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
Graduate School of Sustainable Community Studies, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
Graduate School of Science and Technology, Hirosaki University, 3-Bunkyocho, Hirosaki 036-8561, Japan
Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Energy Conversion Engineering Laboratory, Institute of Regional Innovation, Hirosaki University, 3-Bunkyocho, Hirosaki 036-8561, Japan

Abstract

Among various electrocatalysts, high entropy materials (HEMs) have attracted great attention due to the distinctive designing concept and unique properties with captivating electrocatalytic activity and stability. To date, HEMs have been a new family of advanced electrocatalysts in the research field of water electrolysis. In this work, the structural features and synthesis strategies of high entropy catalysts are reviewed, especially, their performances for catalyzing hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in water electrolysis are presented, in which the crucial roles of structure, composition, multi-sites synergy, and “four core effects” for enhancing catalytic activity, stability, and resistance of electrochemical corrosion are introduced. Besides, the design tactics, main challenges, and future prospects of HEM-based electrocatalysts for HER and OER are discussed. It is expected to provide valuable information for the development of low-cost efficient HEM-based electrocatalysts in the field of water electrolysis.

Keywords: water electrolysis, synthesis strategies, high entropy electrocatalysts, catalytic mechanisms, prospects

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Publication history
Copyright
Acknowledgements

Publication history

Received: 23 July 2022
Revised: 29 September 2022
Accepted: 16 October 2022
Published: 03 December 2022
Issue date: April 2023

Copyright

© Tsinghua University Press 2022

Acknowledgements

Acknowledgements

This work was supported by Natural Science Foundation of Henan Province (NO. 202300410433) and ZiQoo Chemical Co. Ltd, Japan. We also appreciate Mr Lijie Hou of the Shiyanjia Lab (www.shiyanjia.com) for providing the supporting materials.

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