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Mesoporous metallic rhodium nanoparticles

Journal Article


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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 B2.6 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.

Authors


  •   Jiang, Bo (external author)
  •   Li, Cuiling (external author)
  •   Dag, Omer (external author)
  •   Abe, Hideki (external author)
  •   Takei, Toshiaki (external author)
  •   Imai, Tsubasa (external author)
  •   Hossain, Md Shahriar
  •   Islam, Md (external author)
  •   Wood, Kathleen (external author)
  •   Henzie, Joel (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2017

Citation


  • Jiang, B., Li, C., Dag, O., Abe, H., Takei, T., Imai, T., Hossain, M. A., Islam, M., Wood, K., Henzie, J. & Yamauchi, Y. (2017). Mesoporous metallic rhodium nanoparticles. Nature Communications, 8 15581-1-15581-8.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3547&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2523

Start Page


  • 15581-1

End Page


  • 15581-8

Volume


  • 8

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 B2.6 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.

Authors


  •   Jiang, Bo (external author)
  •   Li, Cuiling (external author)
  •   Dag, Omer (external author)
  •   Abe, Hideki (external author)
  •   Takei, Toshiaki (external author)
  •   Imai, Tsubasa (external author)
  •   Hossain, Md Shahriar
  •   Islam, Md (external author)
  •   Wood, Kathleen (external author)
  •   Henzie, Joel (external author)
  •   Yamauchi, Yusuke (external author)

Publication Date


  • 2017

Citation


  • Jiang, B., Li, C., Dag, O., Abe, H., Takei, T., Imai, T., Hossain, M. A., Islam, M., Wood, K., Henzie, J. & Yamauchi, Y. (2017). Mesoporous metallic rhodium nanoparticles. Nature Communications, 8 15581-1-15581-8.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3547&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2523

Start Page


  • 15581-1

End Page


  • 15581-8

Volume


  • 8