Stepwise assembled nickel–cobalt-hydroxide hetero-accumulated nanocrystalline walls on reduced graphene oxide/nickel foams: an adjustable interface design for capacitive charge storage

Abstract

To achieve a balance of a high specific capacitance between the electroactive materials and electrodes with adjustable specific energy and power, evaporation-induced nickel–cobalt-hydroxide hetero-accumulated nanocrystalline walls on reduced graphene oxide/nickel foams are presented by different Ni-doping and dipping numbers. The flexible solution-based strategy promotes a new interface design for capacitive charge storage.