Abstract
Gold nanoparticles of ca. 4 nm in diameter were deposited on a Pt−Ru/C catalyst by the gas-phase grafting method, and the electrocatalytic activities of Pt−Ru/C and gold nanoparticles deposited on a Pt−Ru/C catalyst in the electrooxidation of methanol and CO were studied. The deposition of gold nanoparticles on Pt−Ru/C enhanced its electrocatalytic activity for methanol oxidation at a lower potential region (<450 mV). In addition, the promotion of CO oxidation by gold nanoparticles on Pt−Ru/C was confirmed by CO stripping voltammetry.
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