Metal–organic framework derived hollow polyhedron metal oxide posited graphene oxide for energy storage applications

Abstract

A composite made from hollow polyhedron copper oxide and graphene oxide was synthesized by sintering a Cu-based metal–organic framework (Cu-MOF) embedded with exfoliated graphene oxide. As a proof-of-concept application, the obtained Cu_ox–rGO materials were used in a lithium-ion battery and a sodium-ion battery as anode materials. Overall, the Cu_ox–rGO composite delivers excellent electrochemical properties with stable cycling when compared to pure CuO–rGO and Cu-MOF.