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Influence of TiO2 on surface properties of Al2O3

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Abstract

PASCA and ESCA were utilized to investigate the TiO2−Al2O3 and Mo−Co/TiO2−Al2O3 systems. It was revealed that introduction of titania onto Al2O3 with the proper content (4 wt.%) significantly influences the electronic properties of surface sites, particularly the kink sites (i.e. strong electron acceptor, or CUS Al3+) and hence markedly improves the HDS activity of the Mo−Co/TiO2−Al2O3 catalysts.

Abstract

Методы ПАСХА и ЭСХА использовали для исследования систем TiO2−Al2O3 и Mo−Co/TiO2−Al2O3. Было показано, что введение окиси титана на Al2O3 в соответствующем количестве (4 вес.%) значительно влияет на электронные свойства поверхностных центров, а особенно в изгибах (т.е. сильный электронный акцептор или CUS Al3+), и тем самым сильно улучшает ГДС активность катализаторов Mo−Co/TiO2−Al2O3.

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Authors and Affiliations

  1. Department of Chemistry, Peking University, Beijing, China

    Yang Xi-yao & Zhang Kai

  2. Fushun Research Institute of Petroleum and Petrochemicals, Fushun, Liaoning, China

    Xihui Luo & Jinhai He

Authors
  1. Yang Xi-yao
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  2. Zhang Kai
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  3. Xihui Luo
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  4. Jinhai He
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Xi-yao, Y., Kai, Z., Luo, X. et al. Influence of TiO2 on surface properties of Al2O3 . React Kinet Catal Lett 46, 179–186 (1992). https://doi.org/10.1007/BF02096695

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  • DOI: https://doi.org/10.1007/BF02096695

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