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Calorimetric Study of the Acidity and Interface Effects of Tin Dioxide Layers Deposited on Another Metal Oxide

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Abstract

Samples with various amounts of tin oxide were prepared by impregnating γ-Al2O3, TiO2(anatase), SiO2, ZrO2 and MgO with tin tetrachloride or tributyltin acetate solutions. After drying and calcination, the samples were characterized by chemical analysis, XRD and BET measurements. Ammonia adsorption microcalorimetry was used in order to determine the number, strength and strength distribution of surface acid sites. The influence of the adsorption temperature, evacuation temperature, amount of SnO2 deposited and of the nature of the support on the adsorption properties were studied.

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Authors and Affiliations

  1. Institut de Recherches sur la Catalyse, CNRS, 2 avenue Einstein, 69626, Villeurbanne Cedex, France

    D. Sprinceana & A. Auroux

  2. Institute of Physical Chemistry, Spl. Independentei 202, 77208, Bucharest, Romania

    D. Sprinceana, M. Caldararu & N. I. Ionescu

Authors
  1. D. Sprinceana
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  2. M. Caldararu
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  3. N. I. Ionescu
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  4. A. Auroux
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Sprinceana, D., Caldararu, M., Ionescu, N.I. et al. Calorimetric Study of the Acidity and Interface Effects of Tin Dioxide Layers Deposited on Another Metal Oxide. Journal of Thermal Analysis and Calorimetry 56, 109–115 (1999). https://doi.org/10.1023/A:1010139509988

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  • DOI: https://doi.org/10.1023/A:1010139509988

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