Preparation of Graphene Supported Pt Catalyst and Its Electrocatalytic Oxidation of Formic Acid
The graphene electrode was prepared by potentiostatic electrochemical reduction technique,and a layer of Pt nanoparticles was deposited on the graphene substrate by cyclic voltammetry.The electron transfer properties of Pt/graphene electrode materials and the electrocatalytic oxidation of formic acid were studied by electrochemical testing technique.Compared with commercial Pt electrode materials,Pt nanoparticles/graphene electrode materials showed excellent electrocatalytic oxidation activity for formic acid,and the oxidation peak current was significantly increased.The graphene-supported Pt catalyst is expected to be used as an excellent electrode material for direct formic acid fuel cells.
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