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Pt-Sn/Al2O3 sol-gel catalysts: Metallic phase characterization

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Abstract

Highly dispersed platinum was found in Pt-Sn/Al2O3 catalysts prepared by the sol-gel method, i.e., cogelation of aluminum tri-sec-butoxide and tetrabutyltin and subsequent impregnation with hexachloroplatinic acid. X-ray diffraction studies showed that the cell parameter of pure platinum is not modified in bimetallic Pt-Sn samples. Moreover, energy dispersive X-ray analysis studies (EDX) showed that platinum, but not tin, was detected in the catalysts where tin was incorporated by the sol-gel coprecipitation of tin and aluminum. Incorporation of tin into the alumina network is suggested.

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Authors and Affiliations

  1. Department of Chemistry, Universidad Autonoma Metropolitana-I, PO Box 55-534, 09340, Mexico, DF, Mexico

    R. Gomez, V. Bertin, P. Bosch & T. Lopez

  2. Instituto Mexicano del Petroleo-IBP, Eje Central Lazaro Cardenas 152, 07300, Mexico, DF, Mexico

    P. Del Angel & I. Schifter

Authors
  1. R. Gomez
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  2. V. Bertin
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  3. P. Bosch
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  4. T. Lopez
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  5. P. Del Angel
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  6. I. Schifter
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Gomez, R., Bertin, V., Bosch, P. et al. Pt-Sn/Al2O3 sol-gel catalysts: Metallic phase characterization. Catal Lett 21, 309–320 (1993). https://doi.org/10.1007/BF00769483

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  • DOI: https://doi.org/10.1007/BF00769483

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