中性环境下电催化析氧反应研究进展

Progress in Electrocatalytic Oxygen Precipitation Reaction under Neutral Environment

杜坤 郭佳欣 马紫昂 毛晶 凌涛 赵巍

Kun DU Jiaxin GUO Ziang MA Jing MAO Tao LING Wei ZHAO

天津城建大学 材料科学与工程学院，天津 300384 天津大学 材料科学与工程学院 天津 300354

School of Materials Science & Engineering，Tianjin Chengjian University，Tianjin 300384，China School of Materials Science & Engineering，Tianjin University，Tianjin 300354，China

清洁和可再生能源技术的发展被视为解决能源和环境问题的关键。电催化分解水过程中的析氧反应（OER）在太阳能和风能等间歇式能源存储方面发挥着关键作用。环境友好的中性环境下的OER受到了很大的关注，然而其电解水析氧效率远低于在碱性或酸性条件下电解水析氧效率。基于此，首先概括了目前研究者对中性环境下OER机理的认识；介绍了几种重要的原位跟踪OER电催化过程的表征技术，并概述了包括Co基、Ni基和Mn基等中性环境下的OER催化材料；最后，对促进中性环境下电催化分解水OER面临的挑战进行了总结，并提出了可能的解决策略。

The development of clean and renewable energy technologies is seen as the key to addressing energy and environmental issues.Oxygen evolution reaction (OER) plays key roles in storage intermittent energy,such as solar and wind,from water splitting.Recently, OER under neutral conditions receives considerable interests due to its environmental friendliness.However,the efficiency of OER under neutral environment is far below that under alkaline or acidic condition.In this review,the current researchers' understanding of the mechanism of OER under mild pH conditions is firstly outlined.Thereafter,several important characterisation techniques for in situ tracking of the electrocatalytic process of OER are presented,which is crucial to reveal the OER mechanism under neutral conditions.Moreover,an overview over catalytic materials towards neutral OER,including Co?,Ni?,and Mn?based catalysts,is provided.Finally,a brief outlook on the remaining challenges and possible strategies for promoting neutral OER is given.

国家自然科学基金项目(51722103);天津市自然科学基金项目(19JCJQJC61900)

10.12422/j.issn.1006-396X.2023.05.001