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Mesoporous metallic rhodium nanoparticles

Author

Listed:
  • Bo Jiang

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    Faculty of Science and Engineering, Waseda University)

  • Cuiling Li

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Ömer Dag

    (Bilkent University)

  • Hideki Abe

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Toshiaki Takei

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Tsubasa Imai

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Md. Shahriar A. Hossain

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    Australian Institute for Innovative Materials (AIIM), University of Wollongong (UOW))

  • Md. Tofazzal Islam

    (Bangabandhu Sheikh Mujibur Rahman Agricultural University)

  • Kathleen Wood

    (Australian Nuclear Science and Technology Organisation (ANSTO))

  • Joel Henzie

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS))

  • Yusuke Yamauchi

    (International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
    Faculty of Science and Engineering, Waseda University
    Australian Institute for Innovative Materials (AIIM), University of Wollongong (UOW))

Abstract

Mesoporous noble metals are an emerging class of cutting-edge nanostructured catalysts due to their abundant exposed active sites and highly accessible surfaces. Although various noble metal (e.g. Pt, Pd and Au) structures have been synthesized by hard- and soft-templating methods, mesoporous rhodium (Rh) nanoparticles have never been generated via chemical reduction, in part due to the relatively high surface energy of rhodium (Rh) metal. Here we describe a simple, scalable route to generate mesoporous Rh by chemical reduction on polymeric micelle templates [poly(ethylene oxide)-b-poly(methyl methacrylate) (PEO-b-PMMA)]. The mesoporous Rh nanoparticles exhibited a ∼2.6 times enhancement for the electrocatalytic oxidation of methanol compared to commercially available Rh catalyst. Surprisingly, the high surface area mesoporous structure of the Rh catalyst was thermally stable up to 400 °C. The combination of high surface area and thermal stability also enables superior catalytic activity for the remediation of nitric oxide (NO) in lean-burn exhaust containing high concentrations of O2.

Suggested Citation

  • Bo Jiang & Cuiling Li & Ömer Dag & Hideki Abe & Toshiaki Takei & Tsubasa Imai & Md. Shahriar A. Hossain & Md. Tofazzal Islam & Kathleen Wood & Joel Henzie & Yusuke Yamauchi, 2017. "Mesoporous metallic rhodium nanoparticles," Nature Communications, Nature, vol. 8(1), pages 1-8, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15581
    DOI: 10.1038/ncomms15581
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    Cited by:

    1. Yunqing Kang & Ovidiu Cretu & Jun Kikkawa & Koji Kimoto & Hiroki Nara & Asep Sugih Nugraha & Hiroki Kawamoto & Miharu Eguchi & Ting Liao & Ziqi Sun & Toru Asahi & Yusuke Yamauchi, 2023. "Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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