Research Progress of Metal-Organic Framework Compounds in Oxygen Evolution Catalysis

电解水制氢是一种高效、绿色的氢气获取手段，是氢能应用需要突破的关键技术之一。析氧反应(OER)是电解水制氢中的关键技术，由于其反应能垒高、动力学过程迟缓，极大的制约了电解水制氢技术广泛使用。开发高效、低成本的OER催化剂，是目前电解水技术发展中亟待解决的问题之一。金属有机框架(MOF)催化剂由于可调制的网格结构，丰富的催化活性点位在OER催化中备受关注；但由于MOF稳定性和导电性较差很少被直接作为OER催化剂研究。本文基于MOF析氧催化剂的最新研究进展，深入分析了OER反应的机理，综述了现有MOF析氧催化剂改性策略的研究进展，从MOF的形貌、掺杂、界面、复合进行了深入剖析，并分析了目前MOF析氧催化剂研究中存在的问题。Hydrogen production by electrolysis of water is an efficient and green means to obtain hydrogen, and it is one of the key technologies that need to be broken through in the application of hydrogen energy. Oxygen evolution reaction (OER) is a key technology in hydrogen production by electrolysis of water. Because of its high reaction energy barrier and slow kinetic process, it greatly restricts the wide use of hydrogen production by electrolysis of water. Developing OER catalyst with high efficiency and low cost is one of the urgent problems in the development of electrolytic water technology. Metal-organic framework (MOF) catalyst has attracted much attention in OER catalysis because of its adjustable lattice structure and rich catalytic active sites. However, MOF is rarely directly used as OER catalyst because of its poor stability and conductivity. Based on the latest research progress of MOF oxygen evolution catalyst, this paper deeply analyzes the mechanism of OER reaction, summarizes the research progress of modification strategies of MOF oxygen evolution catalyst, deeply analyzes the morphology, doping, interface and recombination of MOF, and analyzes the problems existing in the research of MOF oxygen evolution catalyst at present.