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Synthesis of Pt–Cu Nanodendrites through Controlled Reduction Kinetics for Enhanced Methanol Electro-Oxidation



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Final reductions: Alloyed Pt–Cu nanodendrites are synthesized through a two-step co-reduction method, in which the reduction rate is controlled by the oxidative etchants and the reducing agents. These dendritic nanostructures are the result of overgrowth along the <111> axis of the face-centered cubic structure and the coalescence of small dendritic seeds. These nanodendrites are highly active for methanol electro-oxidation because of their unique structure and the bifunctionality of Pt and Cu.