金属-有机骨架/石墨烯基复合材料在电化学领域的应用

Application of Metal-organic Framwork/Graphene-based Composites in Electrochemical Fields

金属有机骨架材料(Metal-organic frameworks,MOFs)作为一种新型多孔晶体材料,具有大比表面积、高孔隙率、孔结构和形态特征可调等优点。但是传统MOFs的稳定性和导电性较差,限制了其应用。利用具有丰富官能团的石墨烯基材料作为模板生长MOF颗粒,不仅可以缓解MOF导电性能差和结构不稳定的问题,而且可以避免石墨烯片间的聚集和堆积现象。由于衍生物的结构和组成可调,MOF衍生物/石墨烯材料可以广泛应用于多个领域。综述了近年来MOF/石墨烯复合材料在电化学领域的应用,并指出了存在的问题及以后的发展方向。

As a new kind of porous crystal materials,metal-organic frameworks(MOFs)have the advantages of large specific surface area,high porosity,adjustable pore structure and morphological characteristics.However,the poor stability and conductivity of traditional MOFs limit their application.Using graphene-based materials with rich functional groups as templates to grow MOF particles can not only alleviate the problems of poor electrical conductivity and unstable structure of MOF,but also avoid aggregation and accumulation between graphene sheets.Due to the adjustable structure and composition of the derivatives,MOF/graphene-derived materials can be widely used in many fields.The recent application of MOF/graphene composites in the field of electrochemistry were reviewed,and the existing problems and future development were pointed out.