The present invention relates to a method of preparing an electrocatalyst using reduced oxidized graphene and prussian blue, and more particularly, to a method for producing an electrocatalyst using a reduced oxide graphene gel and a reduced oxidized graphene complex (PB) nanostructures were deposited in situ on a PtDT-RGO composite by electrostatic interactions and electroplated on the Pt nanostructures to form RGO-PB / Pt structures (MOR) when used as an electrocatalyst such as a methanol fuel cell and the like, which can realize a synergistic electrochemical catalytic activity and high stability when used as an electrocatalyst such as a methanol fuel cell, Platinum growth and its application to methanol fuel cell electrocatalysts.
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