▎ 摘　　要

The graphene-Pt nanoparticles (NPs) composites were prepared with ascorbic acid as the reductant through in-situ reduction method. The graphene-Pt NPs were characterized by X-ray diffraction, the Fourier-transform infrared spectra, Raman spectroscopy, scanning electron microscopy and transmission electron microscopy. The obtained production was loaded with Pt nanoparticles, which could increase the active surface area of the electrode catalyst and accelerated the electron transfer.