▎ 摘　　要

The graphene oxide was functionalized by diphenylphosphine through covalent bond. The functionalized graphene oxide was used to immobilize palladium via the coordination bonds between the diphenylphosphine and palladium. The as. synthesized catalyst(GO-P-Pd) was characterized by Fourier transform infrared spectroscopy(FTIR), X-ray diffraction(XRD) and X-ray photoelectron spectroscopy(XPS) and applied in the Heck coupling reaction. The result shows that GO-P-Pd exhibits excellent catalytic performance with high activity and stability. And the catalyst can also be applied to catalyze a wide scope of substrates.