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Activation of a Au/TiO2 Catalyst by Loading a Large Amount of Fe–Oxide: Oxidation of CO Enhanced by H2 and H2O

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Catalytic activity of a 1 wt% Au/TiO2 catalyst is markedly improved by loading a large amount of FeO x , on which the oxidation of CO in excess H2 is selectively promoted at temperature lower than 60 °C. Oxidation of CO with O2 on the FeO x /Au/TiO2 catalyst is markedly enhanced by H2, and H2O moisture also enhances the oxidation of CO but its effect is not so large as the promotion by H2. We deduced that activation of Au/TiO2 catalyst by loading FeO x is not caused by the size effect of Au particles but a new reaction path via hydroxyl carbonyl intermediate is responsible for the superior activity of the FeO x /Au/TiO2 catalyst.

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Authors and Affiliations

  1. Advanced Scientific Research Laboratory, Saitama Institute of Technology, 1690 Fusaiji, Okabe, Saitama, Japan

    Masashi Shou, Hiroyuki Takekawa, Dong-Ying Ju, Tokio Hagiwara & Ken-ichi Tanaka

  2. Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan

    Da-ling Lu

Authors
  1. Masashi Shou
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  2. Hiroyuki Takekawa
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  3. Dong-Ying Ju
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  4. Tokio Hagiwara
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  5. Da-ling Lu
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  6. Ken-ichi Tanaka
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Correspondence to Ken-ichi Tanaka.

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Shou, M., Takekawa, H., Ju, DY. et al. Activation of a Au/TiO2 Catalyst by Loading a Large Amount of Fe–Oxide: Oxidation of CO Enhanced by H2 and H2O. Catal Lett 108, 119–124 (2006). https://doi.org/10.1007/s10562-006-0048-4

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  • DOI: https://doi.org/10.1007/s10562-006-0048-4

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