Synergistic Electronic Pull of Graphene Oxide Supported Pd Nanoparticles on Enhancing Catalytic Activity of Electro Deposited Pt Nanoparticles for Methanol Oxidation Reaction

摘要

Graphene oxide supported clean Pd nanoparticles were synthesized by using CO as a reducing agent.Pt film was deposited on Pd NPs through electrochemical potential cycling method. The as-developedcatalyst, which exhibits higher catalytic performance for electro oxidation of methanol and bettertolerance to the CO poisoning effect suffered during methanol oxidation reaction (MOR). The higherperformance of catalyst attribute towards the long chain organic capping agent free formation processof clean PdPt nanocomposite. This facile and effective route is of great significance for the synthesis ofPd-based catalysts on electrode surface directly with highest MOR activity. The synergistic electronicpull provided by graphene oxide supported Pd nanoparticles to Pt in the composite material highlyenhanced the electro catalytic activity.