Metal-organic framework and graphene composites: advanced materials for electrochemical supercapacitor applications

Metal-organic frameworks (MOFs) with diverse, periodical structures bearing high surface area and tunable pore size have appeared as a new porous hybrid advanced class of material constructed from organic linkers and metal-containing nodes. Due to their high porosity and thermal and mechanical stability, they can be applied in different noteworthy applications. The low conductivity property of MOFs generates a problem for their supercapacitor applications. Thus, their composite formation with graphene can overcome the drawbacks of MOFs and benefit from two-parent constituents. In this context, we give a brief introduction to supercapacitors made from MOF-based graphene composites. Different kinds of supercapacitor with their working principles are also discussed here. This review article focuses on the development of functionalized MOF-based graphene composites by adopting various synthetic strategies and their application in energy storage supercapacitors. The benefits of MOF-graphene composites in supercapacitor applications are also discussed here. Bridging the properties of MOFs and graphene and the development of MOF-graphene composite materials has the potential to extend their usage in supercapacitors and serve as a valuable resource for further investigation.