▎ 摘　　要

NOVELTY - Preparation of functionalized graphene-supported gold-palladium nanocatalyst comprises preparing graphene oxide by Hummer's method, adding to water to prepare 1-5 mg/mL graphene oxide aqueous solution, ultrasonically treating for 15-60 minutes to obtain uniformly dispersed graphene oxide aqueous solution, adding 3-aminopropyl-3-ethoxysilane, ultrasonically treating for 5-20 minutes, stirring to obtain mixed solution 1, dissolving palladium chloride and sodium chloride at molar ratio of 1:2 in distilled water, stirring to obtain brownish yellow 0.01-0.5 M sodium tetrachloropalladate aqueous solution, mixing with aqueous solution of chloroauric acid, stirring to obtain mixed solution 2, adding 30-150 mg sodium borohydride as reducing agent to mixed solution 2, stirring, reducing to obtain mixed solution 3, magnetically stirring, reducing in air at room temperature, centrifuging at speed of 8000-12000 revolutions/minute for 3-8 minutes when free of bubbles and washing. USE - Method for preparing functionalized graphene-supported gold-palladium nanocatalyst used for catalyzing hydrogenation reaction of aqueous solution of formic acid at room temperature (claimed). ADVANTAGE - The product has high catalytic activity without the presence of any additive, 100% conversion rate, 100% hydrogen selectivity and good circulation stability.