Self assembly synthesis of reduced graphene oxide supported platinum nanowire composites with enhanced electrocatalytic activity towards the hydrazine oxidation reaction
Reduced graphene oxide (RGO) supported Pt nanocrystal composites have wide applications in catalysis and electrocatalysis. In this work, we successfully synthesize guanidine functionalized graphene oxide composites and phosphonate functionalized platinum nanowires (Pt NWs) Based on self assembly and NaBH4 reduction, RGO supported Pt NW composites (Pt NWs/RGO) are obtained successfully. The as prepared nanomaterials are detailedly characterized using various physical techniques, such as transmission electron microscopy, X ray photoelectron spectroscopy, X ray diffraction, element mapping, etc. Physical characterization results demonstrate that the guanidine functionalization of graphene oxide is crucial for the generation of Pt NW/RGO composites. Electrochemical results show that both the phosphonate functionalization of Pt NWs and the introduction of RGO contribute to the improved electrocatalytic activity of Pt NW/RGO composites towards the hydrazine oxidation reaction.