▎ 摘　　要

The palladium nanoparticles were successfully stabilized with an average diameter of 6-7 nm through the coordination of palladium and terpyridine-based ligands grafted on graphene oxide surface. The graphene oxide supported palladium nanoparticles were thoroughly characterized and applied as an efficient heterogeneous catalyst in carbon-carbon (Suzuki-Miyaura, Mizoroki-Heck coupling reactions) and carbon-heteroatom (C-N and C-O) bond-forming reactions. The catalyst was simply recycled from the reaction mixture and was reused consecutive four times with small drop in catalytic activity.