▎ 摘　　要

NOVELTY - Electroless nickel plating composite catalyst comprises a reduced oxidized graphene-supported nickel nanoparticle. USE - Electroless nickel plating composite catalyst. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing electroless nickel plating composite catalyst, which involves: (A) adding the graphene oxide dispersed in a first solvent to obtain a first solution; (B) dissolving the nickel salt is dispersed in the second solvent to obtain the second solution; (C) dipping the substrate in a first solution to obtain graphene oxide coated substrate; (D) immersing graphene oxidecoated substrate in the second solution; (E) drying to obtain the catalyst precursor; and (F) reducing catalyst precursor in presence of reducing agent.