双金属协同电催化及其在典型反应中的应用研究进展  

Research progress on bimetallic synergistic electrocatalysis and its application in typical reactions

作　　者：杨天璇 武美霞[1] 陈宁 唐昌强 赵强[1] 王俊丽[1] 郭永[1] 李作鹏[1] YANG Tianxuan;WU Meixia;CHEN Ning;TANG Changqiang;ZHAO Qiang;WANG Junli;GUO Yong;LI Zuopeng(Shanxi Province Clean Energy Materials Joint Laboratory,School of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,China)

机构地区：[1]山西大同大学化学与化工学院山西省清洁能源材料联合实验室,山西大同037009

出　　处：《燃料化学学报(中英文)》2025年第2期211-230,共20页Journal of Fuel Chemistry and Technology

基　　金：国家自然基金(21908135);山西省留学基金择优支持项目(20240027);山西大同大学自然科学基金(2022K23);山西大同大学研究生科研创新项目(23CX31)资助。

摘　　要：近年来,双金属非均相协同催化剂的设计和制备,已成为当前材料与催化领域的研究热点。两种组分之间的适当组合,会极大地提升催化剂的催化性能,并且该催化性能提高的程度明显大于单独使用时的催化性能,因而被认为各组分之间存在着相互协同的催化作用。过去的十几年里,双金属协同催化剂在低温燃料电池和电解水制氢领域取得了巨大的进展,本工作总结了近年来双金属协同催化剂在电化学领域中的相关研究,综述了PtRu、NiFe、PtNi三种典型双金属协同催化剂在甲醇氧化、析氧及氧还原方面的协同反应机理及研究进展。从物理化学性质的改变和电子结构的优化多角度分析了第二种金属的加入对催化剂的影响和改变,最后对双金属协同电催化剂的未来发展方向做出了展望。In recent years,the design and preparation of bimetallic non-homogeneous synergistic catalysts have become a hot research topic in the field of materials and catalysis.The appropriate combination of two components often greatly improves the catalytic performance of the catalysts,and the degree of this catalytic performance improvement is significantly greater than that of the catalytic performance when used alone,thus it is believed that there exists a synergistic catalytic effect between the components.In the past decade,bimetallic synergistic catalysts have made great progress in the fields of lowtemperature fuel cells and water splitting.This paper summarizes the relevant researches of bimetallic synergistic catalysts in the field of electrochemistry in recent years,and systematically reviews the synergistic reaction mechanism and research progress of three typical bimetallic synergistic catalysts,namely PtRu,NiFe and PtNi,in the areas of methanol oxidation reactions,oxygen evolution reaction,and oxygen reduction reactions,the details are as follows:(1)PtRu bimetallic supported materials are considered the holy grail of electrocatalysts that are widely used in fuel cell-related electrocatalysis of methanol oxidation reaction.The unique catalytic ability comes from the synergy effect of PtRu,which cannot be realized by other Pt alloys.The promotion mechanism of PtRu-based catalysts in electrocatalytic reactions is reviewed in recent years for investigation of the role of Pt and Ru during the catalytic reaction process,respectively.To be specific,Pt promotes dissociative dehydrogenation of methanol molecules,while the addition of oxophilic metal Ru can increase the electron density around Pt and weaken the strength of the bond between Pt and adsorbed CO.Furthermore,Ru facilitates the dissociation of H_(2)O at a lower potential to form adsorbed hydroxyl groups which act as oxidants to promote the oxidation of CO adsorbed on the nearby Pt.(2)Since the synergistic effect of Ni and Fe is beneficial to reduce the rea

关 键 词：双金属 协同催化 甲醇氧化 电解水制氢 析氧 氧还原 

分 类 号：TQ536[化学工程—煤化学工程]