Monolithic Au/CeO <sub>2</sub> nanorod framework catalyst prepared by dealloying for low-temperature CO oxidation

DOI Web Site Web Site Web Site Web Site ほか2件をすべて表示 一部だけ表示 被引用文献1件

書誌事項

公開日
2018-01-30
権利情報
  • https://publishingsupport.iopscience.iop.org/iop-standard/v1
  • https://iopscience.iop.org/info/page/text-and-data-mining
DOI
  • 10.1088/1361-6528/aaa726
公開者
IOP Publishing

この論文をさがす

説明

<jats:title>Abstract</jats:title> <jats:p> Monolithic Au/CeO <jats:sub>2</jats:sub> nanorod frameworks (NFs) with porous structure were prepared by dealloying melt-spun Al <jats:sub>89.7</jats:sub> Ce <jats:sub>10</jats:sub> Au <jats:sub>0.3</jats:sub> ribbons. After calcination in O <jats:sub>2</jats:sub> , a 3D Au/CeO <jats:sub>2</jats:sub> NF catalyst with large surface area was obtained and used for low-temperature CO oxidation. The small Au clusters/nanoparticles (NPs) were <jats:italic>in situ</jats:italic> supported and highly dispersed on the nanorod surface, creating many nanoscale contact interfaces. XPS results demonstrated that high-concentration oxygen vacancy and Au <jats:sup> <jats:italic>δ</jats:italic> + </jats:sup> /Au <jats:sup>0</jats:sup> co-existed in the calcined sample. The Au/CeO <jats:sub>2</jats:sub> nanorod catalyst calcined at 400 °C exhibited much higher catalytic activity for CO oxidation compared with the dealloyed sample and bare CeO <jats:sub>2</jats:sub> nanorods. Moreover, its complete reaction temperature was as low as 91 °C. The designed Au/CeO <jats:sub>2</jats:sub> NF catalyst not only possessed extreme sintering resistance but also exhibited high performance owing to the enhanced interaction between the Au clusters/NPs and CeO <jats:sub>2</jats:sub> nanorod during calcination. </jats:p>

収録刊行物

  • Nanotechnology

    Nanotechnology 29 (9), 095606-, 2018-01-30

    IOP Publishing

被引用文献 (1)*注記

もっと見る

問題の指摘

ページトップへ