▎ 摘　　要

The development of nanoscience and nanotechnology has inspired scientists to continuously explore new electrode materials for enhancing electrocatalytic activity and constructing electrochemical platform for sensing. In this study, we proposed a simple and effective approach to the in situ decoration of Cu2O nanoparticles on the surface of graphene nanosheets (Cu2O@CRG). The resulting microstructure and morphology were characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), X-ray powder diffraction (XRD) spectroscopy and electrochemical technique. The results confirm that the high dispersion of crystal Cu2O nanoparticles with the uniform size distribution could be easily obtained via using sodium citrate as reductant and stabilizer. Moreover, the as-prepared Cu2O@CRG which modified glassy carbon electrode (GCE) exhibit better non-enzymatic electrocatalytic responses to glucose than the chemically reduced graphene (CRG) or Cu2O in alkaline media. This new findings demonstrate Cu2O@CRG is a promising candidate of advanced electrode material in electrochemical sensing and other electrocatalytic applications.