Deactivation mechanism for water splitting: Recent advances

被引：28
作者：
Jia, Yansong [1 ,2 ]
Li, Yang [1 ,2 ,3 ]
Zhang, Qiong [4 ]
Yasin, Sohail [1 ,2 ]
Zheng, Xinyu [1 ,2 ]
Ma, Kai [1 ,2 ]
Hua, Zhengli [1 ,2 ]
Shi, Jianfeng [1 ,2 ,3 ]
Gu, Chaohua [1 ,2 ]
Dou, Yuhai [5 ]
Dou, Shixue [5 ]
机构：
[1] Zhejiang Univ, Hydrogen Energy Inst, Hangzhou 310000, Peoples R China
[2] Zhejiang Univ, Inst Proc Equipment, Hangzhou, Peoples R China
[3] Donghai Lab, Zhoushan, Peoples R China
[4] Univ Malaya, Fac Engn, Dept Mech Engn, Kuala Lumpur, Malaysia
[5] Univ Shanghai Sci & Technol, Inst Energy Mat Sci, Shanghai 200093, Peoples R China
来源：
CARBON ENERGY | 2024年 / 6卷 / 07期
基金：
中国国家自然科学基金;
关键词：
deactivation mechanism; hydrogen evolution; in situ characterization; oxygen evolution; water splitting; OXYGEN EVOLUTION REACTION; X-RAY-DIFFRACTION; HYDROGEN EVOLUTION; IN-SITU; HIGHLY EFFICIENT; ELECTROCHEMICAL DISSOLUTION; METAL ELECTROCATALYSTS; OXIDE NANOPARTICLES; MOLYBDENUM CARBIDE; CATALYST STABILITY;
D O I：
10.1002/cey2.528
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydrogen (H2) has been regarded as a promising alternative to fossil-fuel energy. Green H2 produced via water electrolysis (WE) powered by renewable energy could achieve a zero-carbon footprint. Considerable attention has been focused on developing highly active catalysts to facilitate the reaction kinetics and improve the energy efficiency of WE. However, the stability of the electrocatalysts hampers the commercial viability of WE. Few studies have elucidated the origin of catalyst degradation. In this review, we first discuss the WE mechanism, including anodic oxygen evolution reaction (OER) and cathodic hydrogen evolution reaction (HER). Then, we provide strategies used to enhance the stability of electrocatalysts. After that, the deactivation mechanisms of the typical commercialized HER and OER catalysts, including Pt, Ni, RuO2, and IrO2, are summarized. Finally, the influence of fluctuating energy on catalyst degradation is highlighted and in situ characterization methodologies for understanding the dynamic deactivation processes are described. The stability of electrocatalysts has a significant influence on energy efficiency and productivity for industrial green hydrogen production. This review highlights recent research advances regarding the deactivation mechanism in water electrolysis and related in situ/operando techniques for dynamic mechanism studies. image
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页数：30
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