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タイトル
  • en Preparation and structure of a single Au atom on the TiO2(110) surface : control of the Au-metal oxide surface interaction
作成者
    • en Takakusagi, Satoru
    • en Ariga, Hiroko
    • en Chun, Wang-Jae
    • en Suzuki, Shushi
    • en Koike, Yuichiro
    • en Uehara, Hiromitsu
    • en Miyazaki, Kotaro
    • en Iwasawa, Yasuhiro
アクセス権 open access
権利情報
  • en Faraday Discuss., 2012, 162, 165-177 - Reproduced by permission of The Royal Society of Chemistry (RSC)
主題
  • NDC 431
内容注記
  • Abstract en Three-dimensional Au structures on bare and organic-compound-modified TiO2(110) surfaces were interrogated by Au L-3-edge polarization dependent total reflection fluorescence X-ray absorption fine structure (PTRF-XAFS) spectroscopy. On the bare TiO2(110) surface, icosahedral Au-55 nanoclusters were the main product found. When the surfaces were modified with ortho or meso mercaptobenzoic acid (o-MBA or m-MBA), Au was atomically dispersed. Sulfur atoms in the o- and m-MBA formed strong covalent bonds with Au to produce stable Au-MBA (o-and m-forms) surface complexes. On the other hand, only oxygen atoms on the surface did not make a strong enough interaction to stabilize the Au species. We discuss how the Au species formed on the modified TiO2(110) surface and the possibility to control the Au structure by the surface modification method.
出版者 en Royal Society of Chemistry
日付
    Issued2012-12-18
言語
  • eng
資源タイプ journal article
出版タイプ AM
資源識別子 HDL http://hdl.handle.net/2115/54029
関連
  • isVersionOf DOI https://doi.org/10.1039/c2fd20131c
収録誌情報
    • PISSN 1359-6640
      • en Faraday Discussions
      • 巻162 開始ページ165 終了ページ177
ファイル
コンテンツ更新日時 2023-07-26