▎ 摘　　要

Gold nanoparticles (AuNPs) were deposited on the surface of graphene nanosheets (GNS) through a one-step solvothermal approach using ethylene glycol as the solvent and reducing agent. The microstructures of as-prepared GNS and AuNPs/GNS were characterized in detail. The results confirmed that the highly dispersion of AuNPs on the surface of graphene nanosheets could be easily obtained via this simple and facile procedure. In addition, the AuNPs/GNS hybrids exhibited excellent electrochemical activity and highly electrocatalytic activity towards the oxidation of biomolecules such as ascorbic acid (AA), dopamine (DA) and uric acid (UA) because of its unique structure and properties. This new findings demonstrate AuNPs/GNS that is a promising candidate of advanced electrode material in electrochemical sensing and other electrocatalytic applications.