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ACID-base properties of a CERIA-lanthana catalytic system

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Abstract

A ceria-lanthana system was prepared by the sol-gel technique in order to obtain active catalysts for the 4-methylpentan-2-ol conversion. As the products distribution strongly depends on the acid-base features of the catalyst, acidity and basicity of the CeO2-La2O3 samples were determined by adsorption microcalorimetry, using ammonia and carbon dioxide as probe molecules. Both concentration and strength of the sites were assessed and their nature was investigated by analysing the microcalorimetric data in the light of the structural and textural characterisation previously carried out. Present samples are compared to a formerly investigated ceria-lanthana system prepared by a different procedure.

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Authors and Affiliations

  1. Dipartimento di Scienze Chimiche, Università di Cagliari, Complesso Universitario di Monserrato s.s. 554 bivio per Sestu, 09042, Monserrato (Ca), Italy

    M. G. Cutrufello, I. Ferino, E. Rombi & V. Solinas

  2. Instituto de Ciencia de Materiales, Centro de Investigaciones Cientificas 'Isla de la Cartuja', Centro Mixto CSIC-Universidad de Sevilla, Avda. Américo Vespucio s/n, 41092, Sevilla, Spain

    G. Colón & J. A. Navío

Authors
  1. M. G. Cutrufello
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  2. I. Ferino
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  3. E. Rombi
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  4. V. Solinas
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  5. G. Colón
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  6. J. A. Navío
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Correspondence to M. G. Cutrufello.

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Cutrufello, M.G., Ferino, I., Rombi, E. et al. ACID-base properties of a CERIA-lanthana catalytic system. Journal of Thermal Analysis and Calorimetry 72, 223–229 (2003). https://doi.org/10.1023/A:1023936223419

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  • DOI: https://doi.org/10.1023/A:1023936223419

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