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Alumina-titania oxides: Synthesis and characterization

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Abstract

Alumina-titania mixed oxides with nominal atomic ratios Al/Ti=25 and 2 have been synthesized by cohydrolysis of Al(OsecBu)3 and Ti(OBu)4. The oxides were amorphous at 500°C, showing only short range order. Ti was incorporated in alumina in a well dispersed way creating a true Al/Ti mixed oxide. The strength of surface acid sites and specific surface areas were increased at the higher Ti content. The TiO2 anatase phase was avoided and rutile was formed directly at 900°C.

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Authors and Affiliations

  1. Inst. Mexicano del Petroleo, ICA, Apdo. Postal 14-805, 07730, Mexico D.F.

    J. A. Montoya, J. M. Dominguez, J. Navarrete & I. Shifter

  2. Area de Ingenieria Quimica, UAM-Iztapalapa, Apdo. Postal 55-534, 09340, Mexico D.F.

    T. Viveros

  3. Dept. of Chemical Engineering, Imperial College, SW7 2BY, London, UK

    D. Chadwick & K. Zheng

Authors
  1. J. A. Montoya
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  2. J. M. Dominguez
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  3. J. Navarrete
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  4. I. Shifter
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  5. T. Viveros
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  6. D. Chadwick
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  7. K. Zheng
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Montoya, J.A., Dominguez, J.M., Navarrete, J. et al. Alumina-titania oxides: Synthesis and characterization. J Sol-Gel Sci Technol 2, 431–435 (1994). https://doi.org/10.1007/BF00486285

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  • DOI: https://doi.org/10.1007/BF00486285

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