| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5362926 | Applied Surface Science | 2011 | 5 Pages |
In this paper, we proposed a novel and green approach for the synthesis of graphene nanosheets (GNS) and Pt nanoparticles-graphene nanosheets (Pt/GNS) hybrid materials, employing graphene oxide (GO) as precursor and sodium citrate as environmentally friendly reducing and stabilizing agent. The microstructures of GO and Pt/GNS were characterized by high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), Raman spectroscopy, atomic force microscopy (AFM), X-ray diffraction (XRD) and electrochemical measurements. The results confirmed that the uniform size distribution of Pt nanoparticles on the surface of GNS without agglomerates could be easily obtained via using sodium citrate as reductant, moreover the Pt/GNS hybrids exhibited high electrochemical activity.
⺠We demonstrated that sodium citrate could convert GO to GNS for the first time, which was commonly used as an environmentally friendly reducing and stabilizing reagent for Pt nanoparticles preparation. ⺠A uniform distribution of Pt nanoparticles on the surface of GNS and Pt/GNS hybrid materials can be easily obtained in simple reducing reaction by use of sodium citrate. ⺠Pt/GNS exhibits high electrochemical activity.
