Hierarchically porous Nb-TiO2 nanomaterials for the catalytic transformation of 2-propanol and n-butanol

M. Franco Finol, J. Rooke, S. Siffert, R. Cousin, P. Carniti, A. Gervasini, J. M. Giraudon, B. L. Su, J. F. Lamonier

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

Nb-TiO2 nanomaterials with hierarchical porosity (macro, meso and micropores) have been successfully synthesized using a simple self-assembly method without the need for a surfactant. Improved textural and structural properties were obtained after incorporation of Nb within a TiO2 framework. High Nb dispersion and Nb-Ti interaction were achieved at the Nb-TiO2 nanomaterial surface. With Nb addition to TiO2, the balance of Lewis to Brønsted acid sites was maintained however the acidity increased in strength. The catalytic transformation of 2-propanol and n-butanol was favoured at very low temperatures with a change in selectivity; the dehydration reaction of alcohols into alkenes was promoted by the increase in acidity of the Nb-TiO2 nanomaterials.

langue originaleAnglais
Pages (de - à)1988-1995
Nombre de pages8
journalNew Journal of Chemistry
Volume38
Numéro de publication5
Les DOIs
Etat de la publicationPublié - 1 janv. 2014

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