▎ 摘　　要

NOVELTY - Preparation of hydrogen evolution reaction catalyst nano-sheet three-dimensional graphene composite material includes adding hydrogen evolution reaction catalyst solids in organic solvent, ultrasonically processing, forming catalyst nano-sheet solution as dispersion A, dissolving graphene oxide in deionized water, ultrasonically processing, obtaining homogeneous graphene oxide aqueous solution as dispersion B, mixing dispersion A and dispersion B, ultrasonically dispersing, adding in hydrothermal reaction kettle, reacting, cooling, dialyzing with deionized water and liquid nitrogen freezing. USE - Preparation of hydrogen evolution reaction catalyst nano-sheet three-dimensional graphene composite material (claimed). ADVANTAGE - The hydrogen evolution reaction catalyst nano-sheet three-dimensional graphene composite material has increased hydrogen evolution reaction and electric conduction efficiency, increased catalytic efficiency, increased surface area and catalytic active site, thus, increasing catalytic activity, simple preparation, low production cost and wide industrial application, and is easy for mass production. DETAILED DESCRIPTION - Preparation of hydrogen evolution reaction catalyst nano-sheet three-dimensional graphene composite material comprises taking 0.1-1 g hydrogen evolution reaction catalyst solids, adding in organic solvent, ultrasonically processing for 6-24 hours, forming catalyst nano-sheet solution as dispersion A, taking 0.08-0.8 g graphene oxide, dissolving in 10-100 ml deionized water, ultrasonically processing for 3-24 hours, obtaining homogeneous graphene oxide aqueous solution as dispersion B, mixing dispersion A and dispersion B at 1:10-4:1 volume ratio, ultrasonically dispersing for 0.5-3 hours, adding in hydrothermal reaction kettle, reacting at 140-200 degrees C for 12-24 hours, cooling, dialyzing with deionized water for 5-7 days, liquid nitrogen freezing, and freeze drying in freeze drying machine for 3-5 days to obtain the product. An INDEPENDENT CLAIM is included for hydrogen evolution reaction catalyst nano-sheet three-dimensional graphene composite material.