▎ 摘　　要

NOVELTY - A nitrogen-doped three-dimensional graphene loaded palladium nano composite catalyst comprises nitrogen-doped graphene of three-dimensional structure as carrier, and 5-15 %mass palladium nanoparticles as active component, where the particle diameter of palladium nanoparticles is 5-10 nm. USE - Nitrogen-doped three-dimensional graphene loaded palladium nano composite catalyst in halogenated benzene and benzeneboronic acid Suzuki reaction (claimed). ADVANTAGE - The nitrogen-doped three-dimensional graphene loaded palladium nano composite catalyst has excellent catalytic activity and repeatability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of nitrogen-doped three-dimensional graphene loaded palladium nano composite catalyst; and (2) application of nitrogen-doped three-dimensional graphene loaded palladium nano composite catalyst in halogenated benzene and benzeneboronic acid Suzuki reaction.