酸性析氧反应贵金属催化剂研究进展  

Research Progress of Noble Metal Electrocatalysts forAcidic Oxygen Evolution Reaction

作　　者：李义兵 周盟皓 LI Yibing;ZHOU Menghao(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610097,Sichuan)

机构地区：[1]西南交通大学电气工程学院,四川成都610097

出　　处：《四川师范大学学报(自然科学版)》2025年第3期327-340,F0002,共15页Journal of Sichuan Normal University(Natural Science)

基　　金：国家自然科学基金优秀青年基金(WB0100112372305)。

摘　　要：绿电驱动的电解水制氢是一种清洁的氢气制备技术.与碱性电解水制氢技术(AWE)相比,质子交换膜电解水制氢技术(PEMWE)具有化学性质稳定、质子导电率高、无孔隔绝气体等优点.但阳极析氧反应(OER)酸性环境苛刻,且涉及四电子转移步骤,动力学过程缓慢,因此需要高活性和耐酸耐腐蚀的电催化剂材料.贵金属纳米功能材料由于其高活性和良好的选择性,作为高性能酸性OER电催化剂,发挥着至关重要的作用.目前,Ir基、Ru基材料组成的催化剂已经被设计并应用于酸性OER.综述近年酸性OER贵金属电催化剂的研究进展,首先阐述吸附质演化机制和晶格氧氧化机制2种主流的OER反应机制,然后以Ir基、Ru基贵金属材料总结最近报道的酸性OER电催化剂,最后对酸性析氧反应贵金属催化剂的反应机制以及结构设计等发展方向进行展望.Hydrogen production by water electrolysis is a clean production technology. Compared with alkaline water electrolysis (AWE), proton exchange membrane water electrolysis (PEMWE) has the advantages of chemical stability, high proton conductivity, and non-porous gas isolation. However, the oxygen extraction reaction (OER) has a harsh acidic environment and involves a four-electron-transfer step with a slow kinetic process, which requires highly active, acid-resistant and corrosion-resistant electrocatalyst materials. Noble metal materials play a crucial role as high-performance acidic OER electrocatalysts due to their high activity and good selectivity. So far, several catalysts composed of Ir-based and Ru-based materials have been designed and applied to acidic OER. This paper reviews the research progress of noble metal materials electrocatalysts for acidic OER in recent years. Firstly, two mainstream OER mechanisms, namely, adsorbate evolution mechanism and lattice oxygen oxidation mechanism, are described, and then the recently reported acidic OER electrocatalysts are summarized in terms of Ir-based and Ru-based noble metal materials. Finally, the development direction of noble metal catalysts in the acidic oxygen-oxidation reaction, such as reaction mechanism and structural design, is anticipated.

关 键 词：酸性析氧反应(OER) 贵金属 电催化 

分 类 号：O611[理学—无机化学]