▎ 摘　　要

In this work, the synthesis and characterization of palladium nanoparticle-reduced graphene oxide hybrid (Pd-rGO) material is reported. Techniques of X-ray diffraction, transmission electron microscope (TEM), energy-dispersive X-ray, FT-IR spectroscopy, thermogravimetric analysis and cyclic voltammetry were used to characterize the structure and properties of the Pd-rGO. Results demonstrate the effect of Pd on the reduced GO. The average particle size of the Pd nanoparticles supported on rGO obtained from TEM is about 12-18 nm. Moreover, glassy carbon electrode (GCE) modified with palladium nanoparticle-graphene oxide hybrid (Pd-rGO/GCE) was prepared by casting of the Pd-rGO solution on GCE. The electrochemical and catalytic activity of the Pd-rGO/GCE was studied in 0.1 M H2SO4 solution. The Pd-rGO/GCE electrode exhibited remarkable electrocatalytic activity for the hydrogen evolution reaction (HER). At potential more negative than -0.4 V vs. Ag |AgCl |KCl3M, the current is mainly due to hydrogen evolution reaction. Finally, the kinetic parameters of hydrogen evolution reaction are also discussed on the Pd-rGO/GCE.