▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide loaded palladium-metal precursor nano composite catalyst involves (S1) ultrasonically dispersing a graphene oxide in ultra-pure water to obtain a graphene oxide suspension with a concentration of 0.1-2 mg/mL, (S2) mixing a salt solution of sodium tetrachloropalladate solution and metal precursor in a molar ratio of 1:1-5:1, adding dispersion to the graphene oxide suspension, dispersing the metal precursor between the graphene oxide nanosheets, uniformly mixing with polyethylene glycol to obtain a final mixed solution, (S3) dripping 0.005-0.05 mol/L sodium borohydride solution to the final mixed solution, stirring and loading the mixture, washing using a mixture of deionized water and anhydrous ethanol, vacuum-filtering, and freeze-drying. The ratio between the volume of polyethylene glycol and the mass of graphene oxide is 1-3 mL/mg. USE - Preparation of reduced graphene oxide loaded palladium-metal precursor nano composite catalyst. ADVANTAGE - The process is simple and feasible, and produces catalyst having uniform Dispersibility, large specific surface area, improved catalytic activity and stability.