Nanogold platinum bimetal and carbon material oxygen reaction catalyst and preparation method thereof

The invention discloses a nanogold platinum bimetal and carbon material oxygen reaction catalyst and a preparation method thereof. A carbon material is used as a carrier, organic ligand-terminated nanogold platinum bimetal is used as an active center, and the nanogold platinum bimetal and carbon material oxygen reaction catalyst is prepared through adoption of a one-step reduction method. The carbon material is one or more of carbon nanotubes, graphene and carbon black, and the end-capping reagent is one or more of tetrakis hydroxymethyl phosphonium chloride, mercaptosuccinic acid and triphenylphosphine. The average particle size of the nanogold platinum bimetal is 2.8 nm to 3.2 nm, the loading capacity of the nanogold platinum bimetal is 10 wt.%-15 wt.%, and the molar ratio of gold to platinum is 0.5-1.7. The catalyst is controllable in structure, mild in reaction condition, simple to operate and low in cost; and compared with commercial 20wt.% Pt/C, the prepared nanogold platinum bimetal and carbon material