Plasma synthesis of highly dispersed Pt nanoparticles on reduced graphene oxide-molybdenum disulfide nanosheets as efficient electrocatalysts for methanol oxidation reaction

Abstract Platinum/reduced graphene oxide-molybdenum disulfide composite (Pt/rGO-MoS2) is synthesized by employing H2-plasma technique. The morphology, structure and component of Pt/rGO-MoS2 is investigated. Compared with Pt/rGO or Pt/MoS2, the as-prepared Pt/rGO-MoS2 catalyst exhibits large electrochemical active area (104.3 m2 g−1), high current density (737.8 mA mg−1) for MOR and long-term stability. These improvements are attributed to the rGO-MoS2 support that improves the dispersion of Pt NPs and offer sufficient electronic conductive channels. With these excellent electrochemical performances, this work may therefore offer a promising electrocatalyst for large-scale commercial application of fuel cells.