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Dispersion of rhodium on rutile: Comparison of samples prepared by ion exchange and impregnation

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Abstract

Rh/TiO2 (rutile) samples have been prepared by impregnation (series I) and ion exchange (series C). Upon reduction at low temperature (473 K) the metal dispersity is larger for samples C than for samples I. Removal of surface OH groups in series C cancels the strong Metal-Support Interaction, thus increasing the metal dispersity measured upon reduction at 773 K.

Abstract

Образцы Rh/TiO2 (рутила) приготовляии импрегнированием (серия Ї) и ионным обменом (серия С). При восстановлении при низких температурах (473 K) дисперсия металла в случае образца С намного выше, чем для образцов Й. Удаление рорерхностных ОН-групо в серии С уничтожает SMSI-состояине тем самым повышая металлическую дисперсню при восстановлении при 773 K.

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Authors and Affiliations

  1. Department de Química Inorgánica Facultad de Farmacia, Universidad de Salmanca, Salmanca, Spain

    M. J. Holgado, A. C. Iñigo & V. Rives

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  1. M. J. Holgado
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  2. A. C. Iñigo
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  3. V. Rives
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Holgado, M.J., Iñigo, A.C. & Rives, V. Dispersion of rhodium on rutile: Comparison of samples prepared by ion exchange and impregnation. React Kinet Catal Lett 46, 409–414 (1992). https://doi.org/10.1007/BF02070964

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  • DOI: https://doi.org/10.1007/BF02070964

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