▎ 摘　　要

NOVELTY - Preparation of graphene oxide-supported palladium by atmospheric pressure cold plasma in liquid phase, involves preparing a mixed liquid containing graphene oxide powder and preset concentration of palladium precursor, where the palladium precursor in the mixed liquid is palladium nitrate or palladium chloride, in the concentration of 2.35-7.27 mM, processing a mixed liquid containing graphene oxide powder and palladium precursor in an atmospheric pressure-cooled plasma quartz reactor, and centrifuging, washing and drying the mixed liquid to obtain graphene oxide-supported palladium catalytic material, where the loading amount of palladium in the catalytic material is 0.1-5 wt.%. USE - Preparation of graphene oxide-supported palladium by atmospheric pressure cold plasma in liquid phase. ADVANTAGE - The atmospheric pressure-cooled plasma reduces palladium in the liquid phase without reducing graphene oxide, which simplifies the preparation steps, improves the catalytic performance, and saves preparation resources.