MXene基材料在电催化领域的研究进展

Research progress of MXene based materials in the field of electrocatalysis

电催化是未来新能源存储与转化技术的关键,主要应用于电解水制氢和燃料电池等氢能产业。MXene是二维层状过渡金属碳化物、氮化物和碳氮化合物的统称,具备高电导率、大比表面积、良好的电荷转移能力及丰富可控的表面官能团,近年来被广泛应用于电化学催化领域。本文首先阐述了二维MXene的多种结构,其次总结了MXene基电催化材料在亲水性、导电性、离子传输及表面缺陷等方面的优势,重点综述了近年来MXene基材料在析氢反应(Hydrogen evolution reaction,HER)、析氧反应(Oxygen evolution reaction,OER)、氧还原反应(Oxygen reduction reaction,ORR)等催化反应中的应用和进展,揭示了MXene结构与性能之间的关系,最后总结并展望了未来的发展前景。

Electrocatalysis is the key technology of new energy storage and conversion in the future,which is mainly used in hydrogen energy industries such as hydrogen production by water electrolysis and fuel cells.MXene is a general term for two-dimensional layered transition metal carbides,nitrides and carbonitrides.It has high conductivity,large specific surface area,good charge transfer ability as well as rich and controllable surface functional groups,which has been widely used in the field of electrochemical catalysis in recent years.In this paper,the multiple structures of two-dimensional MXene are described firstly,and then the advantages of MXene based electrocatalytic materials in hydrophilicity,conductivity,ion transport and surface defects are summarized,with emphasis on the application and progress of MXene based materials in hydrogen evolution reaction(HER),oxygen evolution reaction(OER),oxygen reduction reaction(ORR)and other catalytic reactions in recent years,The relationship between MXene structure and performance is revealed.Finally,the future development prospect is summarized and prospected.