▎ 摘　　要

An efficient route to chemically functionalize reduced graphene oxide (rGO) with ruthenium organometallic compounds and the subsequent anchorage of Pt nanoparticles is reported. Two organometallic complexes, [(eta(6)-C6H5OCH2CH2OH) RuCl2](2) (Ru-dim) and [(eta(6)-C6H4(CHMe2)Me)RuCl2](2) (Ru-cym), as well as commercial RuCl3 . XH2O (Ru-com) have been synthetized an used as functionalizing agents. By implementing a conventional polyol synthesis method, the Pt/rGO(Ru-dim), Pt/rGO(Ru-cym), Pt/rGO(Ru-com) and Pt/rGO nanocatalysts have been synthetized. Characterization by XRD indicates that the presence of Ru leads to the formation of Pt-Ru alloyed phases due to overlapping of Pt fcc and Ru hcp reflections. When characterized for the methanol oxidation reaction (MOR) in acid media, Pt/rGO(Ru-dim) reached a mass current density of 491.49 mA mg(Pt)(-1), higher than those generated by the other nanocatalysts. The results show that the functionalization of rGO with Ru-dim remarkably increases the catalytic activity of Pt for the MOR, suggesting Pt-Ru metal-metal interactions that promotes the anodic reaction.