▎ 摘　　要

NOVELTY - Preparing metal/graphene/single atom composite catalytic material involves reparing pure foam metal material with thickness of 10 to 100 mm and average hole diameter of 0.1 to 10 mm by metal, preparing graphene on the surface of pure foam metal material by chemical vapour deposition method, vacuumizing the pure foam metal material prepared to be less than or equal to 2Pa, raising the temperature to 500-1000degrees Celsius, at the same time, introducing hydrogen and argon gas, the hydrogen inlet amount is 20-50sccm, the argon gas inlet amount is 100-150sccm, keeping the temperature for 10-40min, introducing carbon source gas to react according to the filling amount of 10-40sccm, and the time is 10- 40min; then controlling the hydrogen inlet amount is 20-50sccm. USE - Method for preparing metal/graphene/single atom composite catalytic material. ADVANTAGE - The method enables to prepare metal/graphene/single atom composite catalytic material with good catalytic effect. DETAILED DESCRIPTION - Preparing metal/graphene/single atom composite catalytic material involves reparing pure foam metal material with thickness of 10 to 100 mm and average hole diameter of 0.1 to 10 mm by metal, preparing graphene on the surface of pure foam metal material by chemical vapour deposition method, vacuumizing the pure foam metal material prepared to be less than or equal to 2Pa, raising the temperature to 500-1000degrees Celsius, at the same time, introducing hydrogen and argon gas, the hydrogen inlet amount is 20-50sccm, the argon gas inlet amount is 100-150sccm, keeping the temperature for 10-40min, introducing carbon source gas to react according to the filling amount of 10-40sccm, and the time is 10- 40min; then controlling the hydrogen inlet amount is 20-50sccm, the argon inlet amount is 100-150sccm cooling to obtain the foam transition metal/graphene composite material, on the basis of the foam transition metal/graphene composite material, using vacuum magnetic control sputtering technology to deposit a transition metal layer on the graphene surface, the process parameters are as follows: the vacuum cavity bottom vacuum is not more than 5x10-3Pa, the pressure in the vacuum chamber is not more than 2Pa, the target power density is 0.1 to 1kw per decimetre target width, the average thickness of the transition metal layer is less than or equal to 5nm, the foam transition metal/graphene/transition metal in the diluted acid corrosion, time is 5 to 60 min, cleaning and drying to obtain a foam metal/graphene/single-atom composite catalytic material.