THREE-DIMENSIONAL COMPOSITES OF NICKEL COBALT OXIDE/ GRAPHENE ON NICKEL FOAM FOR SUPERCAPACITOR ELECTRODES, AND PREPARATION METHOD THEREOF

摘要

Provided is a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam as high-performance electrode materials for supercapacitors and a method for preparing the same, and the electrode comprising a three-dimensional nickel cobalt oxide/graphene on nickel foam exhibited an ultrahigh specific capacitance of 2,260 F/g at a current density of 1 A/g.