▎ 摘　　要

NOVELTY - Bionic structured nanoparticle-graphene-foam nickel composite material, is claimed. The microscopic appearance has bionic structure of framework-skin-hair structure, where, the foamed nickel plays the role of framework, specifically, foamed nickel can avoid graphene stacking and make graphene fully spread; graphene acts as skin, specifically the oxygen-containing functional groups present on the surface of graphene act as active sites for nanoparticle growth, which act as an inducer during nanoparticle growth, and the active sites act as an anchor for the attraction of nanoparticles, just type of the hair follicle on the skin; nanoparticles play the role of hair, and specifically grow uniformly on the surface of graphene, as active sites for catalytic reactions. USE - The composite material is used as hydrogen production catalyst by hydrolysis of borohydride (claimed). ADVANTAGE - The composite material: can achieves the effect of hydrogen production on demand and immediate control of the start and stop of the reaction. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the bionic structured nanoparticle-graphene-foam nickel composite material comprising using foamed nickel, graphene oxide, cobalt nitrate hexahydrate, nickel nitrate hexahydrate, ammonium fluoride, urea and sodium dihydrogen hypophosphite as raw materials, firstly preparing graphene-foam nickel composite carrier with skeleton-skin structure by foamed nickel and graphene oxide, loading the nanoparticle precursor, finally passing the phosphating treatment, to obtain bionic structured nanoparticle-graphene-foam nickel composite material; and (2) bionic structured nanoparticle-graphene-foam nickel composite material is used as hydrogen production catalyst by hydrolysis of borohydride, the maximum hydrogen production rate provided at 323 K is 6681.34 mL.minute-1 g-1, the amount of hydrogen released is 100% of the theoretical value, the activation energy of catalytic hydrogen release is Ea = 31.2 kJ.mol-1, the block structure of the composite material can achieve the effect of hydrogen production on demand and immediate control of the start and stop of the reaction. by controlling the contact between the composite material and the sodium borohydride (NaBH4) solution to realize the start and stop of the reaction and the rate control.