Preparation and Characterization of Platinum-ruthenium Bimetallic Nanoparticles Using Reverse Microemulsions for Fuel Cell Catalyst

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概要

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• Platinum-ruthenium bimetallic nanoparticles are prepared by chemical reduction using sodium borohydride in reverse microemulsions of water/isooctane/Igepal CA-630/2-propanol for fuel cell catalysts. The prepared nanoparticles are characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and energy-dispersive X-ray analysis. The average size and morphology of nanoparticles are dependent on the water volume fraction in reverse microemulsion system in the range of ca. 2-4 nm. The morphology of particles is related with the percolation behavior of water droplets in reverse microemulsions. By the pretreatment of water phase using a hydrochloric acid, the particles of a homogeneous solid solution state can be obtained. The CO stripping cyclovoltammetry and the electrochemical measurements compared with commercial catalyst show that the prepared particles have a high electrochemically active surface area and a stable and high catalytic activity for reformate gas oxidation.

• 日本油化学会の論文

著者

• Kim Taeyoon

  Advanced Research Center for Energy and Environment, Musashi Institute of Technology

• Kobayashi Koichi

  Advanced Research Center for Energy and Environment, Musashi Institute of Technology

• Nagai Masayuki

  Advanced Research Center for Energy and Environment, Musashi Institute of Technology

関連論文

• Preparation and Characterization of Platinum-ruthenium Bimetallic Nanoparticles Using Reverse Microemulsions for Fuel Cell Catalyst
• Effect of Sn in Pt-Ru-Sn Ternary Catalysts for CO/H_2 and Methanol Electrooxidation
• Methanol Electrooxidation on Carbon-Supported Pt_3Ru_2Sn Ternary Catalyst

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