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Anatase-rutile transformation in Fe/TiO2, Th/TiO2 and Cu/TiO2 catalysts and its possible role in metal-support interaction

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Abstract

Based onin-situ Mössbauer and X-ray diffraction studies, it is shown that in the Fe/TiO2 catalyst, the anatase-rutile transformation of the TiO2 support is facilitated by the Fe2+ ions formed during the reduction. The transformation occurs at lower temperatures in Th/TiO2 and Cu/TiO2 compared to pure TiO2. In general, the transformation of anatase to rutile seems to occur at or below the temperature (∼770 K) at which strong-metal-support-interaction manifests itself.

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Authors and Affiliations

  1. Solid State and Structural Chemistry Unit, Indian Institute of Science, 560012, Bangalore, India

    G. Sankar, K. R. Kannan & C. N. R. Rao

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  1. G. Sankar
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  2. K. R. Kannan
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  3. C. N. R. Rao
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Contribution No. 718 from the Solid State and Structural Chemistry Unit.

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Sankar, G., Kannan, K.R. & Rao, C.N.R. Anatase-rutile transformation in Fe/TiO2, Th/TiO2 and Cu/TiO2 catalysts and its possible role in metal-support interaction. Catal Lett 8, 27–36 (1991). https://doi.org/10.1007/BF00764380

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  • DOI: https://doi.org/10.1007/BF00764380

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