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Catalytic Properties of Platinum Supported on Titanium Dioxide by Liquid-Phase Adsorption of Colloidal Nanoparticles

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Abstract

Pt/TiO2 catalysts were prepared by a colloidal deposition method including the photochemical preparation of Pt nanoparticles protected by poly(N-vinyl-2-pyrrolidone) and their deposition by liquid-phase adsorption on TiO2. Pt/TiO2 catalysts prepared by the colloidal deposition method with oxidation and H2 reduction treatment showed higher CO oxidation activity than those obtained by impregnation and photodeposition techniques. FTIR studies revealed the reactivity of CO species adsorbed on Pt sites of these catalysts. The higher activity was ascribable to higher dispersion and higher reactivity of CO adsorbed on Pt particles.

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Authors and Affiliations

  1. Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan

    Kana Kimura

  2. Department of Energy and Material Sciences, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, 816-8580, Japan

    Hisahiro Einaga & Yasutake Teraoka

Authors
  1. Kana Kimura
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  2. Hisahiro Einaga
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  3. Yasutake Teraoka
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Correspondence to Hisahiro Einaga.

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Kimura, K., Einaga, H. & Teraoka, Y. Catalytic Properties of Platinum Supported on Titanium Dioxide by Liquid-Phase Adsorption of Colloidal Nanoparticles. Catal Lett 139, 72–76 (2010). https://doi.org/10.1007/s10562-010-0388-y

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  • DOI: https://doi.org/10.1007/s10562-010-0388-y

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