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Synthesis of Mesoporous Pt–Ru Alloy Particles with Uniform Sizes by Sophisticated Hard-Templating Method

Authors

  • Prasannan Karthika,

    1. World Premier International (WPI), Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com
    2. Centre for Fuel Cell Technology, International Advanced Research Centre for Powder Metallurgy and New Materials, IITM Research Park, Chennai 600 113 (India)
    3. Crystal Growth Centre, Anna University, Sardar Patel road, Guindy, Chennai 600 025 (India)
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    • These authors contributed equally to this work.

  • Hamed Ataee-Esfahani,

    1. World Premier International (WPI), Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com
    2. Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan)
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    • These authors contributed equally to this work.

  • Hongjing Wang,

    1. World Premier International (WPI), Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com
    2. Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan)
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  • Malar Auxilia Francis,

    1. Crystal Growth Centre, Anna University, Sardar Patel road, Guindy, Chennai 600 025 (India)
    2. Environmental Remediation Materials Unit, Environment and Energy Materials Division, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
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  • Hideki Abe,

    1. Environmental Remediation Materials Unit, Environment and Energy Materials Division, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
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  • Natarajan Rajalakshmi,

    1. Centre for Fuel Cell Technology, International Advanced Research Centre for Powder Metallurgy and New Materials, IITM Research Park, Chennai 600 113 (India)
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  • Kaveripatnam S. Dhathathreyan,

    1. Centre for Fuel Cell Technology, International Advanced Research Centre for Powder Metallurgy and New Materials, IITM Research Park, Chennai 600 113 (India)
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  • Dakshinamoorthy Arivuoli,

    1. Crystal Growth Centre, Anna University, Sardar Patel road, Guindy, Chennai 600 025 (India)
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  • Yusuke Yamauchi

    Corresponding author
    1. World Premier International (WPI), Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com
    2. Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan)
    • World Premier International (WPI), Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com

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Abstract

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Team work: Mesoporous Pt–Ru alloy particles with uniform sizes are synthesized by controlled chemical reduction with ascorbic acid using mesoporous silica as a hard template. Elemental mapping shows uniform distribution of Pt and Ru particles. The electrochemical activity and stability of the alloys towards methanol oxidation much higher than that of mesoporous Pt and commercial Pt catalyst.

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