▎ 摘　　要

NOVELTY - Preparation of silicon carbide/graphene composite material supported platinum atom catalyst involves (1) adding silicon carbide powder to graphite furnace, heating, obtaining silicon carbide/graphene composite material, (2) dispersing the silicon carbide/graphene composite material in hexane, ultrasonically treating, adding 3-aminopropyltrimethoxysilane, ultrasonically stirring, washing and filtering, drying to obtain surface-modified silicon carbide/graphene composite material, (3) dispersing the surface-modified silicon carbide/graphene composite material in deionized water, adding 0.01 mol/L chloroplatinic acid solution and stirring, washing and filtering, drying to obtain a silicon carbide/graphene composite material anchoring chloroplatinate radicals, (4) dispersing the silicon carbide/graphene composite material anchoring chloroplatinate radicals in deionized water, using monochromatic UV light to irradiate the dispersion, centrifuging, washing, and heat treating. USE - Preparation of silicon carbide/graphene composite material supported platinum atom catalyst. ADVANTAGE - The method is simple and economical. The prepared catalyst can maintain atomic catalysis without agglomeration, and has high catalyst efficiency and high catalytic activity, and solves the problems of easy agglomeration of existing catalysts. DETAILED DESCRIPTION - Preparation of silicon carbide/graphene composite material supported platinum atom catalyst involves (1) adding silicon carbide powder to graphite furnace, heating to 1600-1900degreesC for 3 hours or less, cooling to room temperature, obtaining silicon carbide/graphene composite material, (2) dispersing the silicon carbide/graphene composite material in hexane, ultrasonically treating, adding 3-aminopropyltrimethoxysilane, ultrasonically stirring, washing and filtering, drying to obtain surface-modified silicon carbide/graphene composite material, (3) dispersing the surface-modified silicon carbide/graphene composite material in deionized water, ultrasonically treating, adding 0.01 mol/L chloroplatinic acid solution and stirring, washing and filtering, drying to obtain a silicon carbide/graphene composite material anchoring chloroplatinate radicals, (4) dispersing the silicon carbide/graphene composite material anchoring chloroplatinate radicals in deionized water and ultrasonically treating to obtain dispersion, using monochromatic UV light to irradiate the dispersion, centrifuging to collect the initial product, washing, and heat treating.