▎ 摘　　要

NOVELTY - Hierarchical mesoporous three-dimensional nickel foam composite comprises nickel foam, a three-dimensional nickel-foam multilayered mesoporous structure containing graphene sheet formed on the nickel foam, and nickel-cobalt-sulfide arrayed nanoparticles. USE - Hierarchical mesoporous three-dimensional nickel foam composite used as an electrode for supercapacitor (claimed). ADVANTAGE - The hierarchical mesoporous three-dimensional nickel foam composite improves electrode performance and storage capacity after 2000 cycles, and can be prepared in a very simple and effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing hierarchical mesoporous three-dimensional nickel foam composite, which involves: (A) washing and preparing nickel foam; (B) depositing graphene foil on the prepared nickel foam; (C) synthesizing composite by charging a nickel foil into an electrolyte solution in which a nickel precursor, a cobalt precursor, and a sulfur precursor are dissolved; (D) washing the synthesized composite; and (E) drying the resultant composite. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the method for producing hierarchical mesoporous three-dimensional nickel foam composite having multi-layered mesoporous structure on the three-dimensional nickel foam.