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

doi:10.1039/c3nj01132a

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

Unite de recherche en chimie des nanomateriaux

Résultats de recherche: Contribution à un journal/une revue › Article › Revue 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 originale	Anglais
Pages (de - à)	1988-1995
Nombre de pages	8
journal	New Journal of Chemistry
Volume	38
Numéro de publication	5
Les DOIs	https://doi.org/10.1039/c3nj01132a
Etat de la publication	Publié - 1 janv. 2014

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10.1039/c3nj01132a

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

abstract = "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 Br{\o}nsted 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.",

author = "{Franco Finol}, M. and J. Rooke and S. Siffert and R. Cousin and P. Carniti and A. Gervasini and Giraudon, {J. M.} and Su, {B. L.} and Lamonier, {J. F.}",

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doi = "10.1039/c3nj01132a",

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T1 - Hierarchically porous Nb-TiO2 nanomaterials for the catalytic transformation of 2-propanol and n-butanol

AU - Franco Finol, M.

AU - Rooke, J.

AU - Siffert, S.

AU - Cousin, R.

AU - Carniti, P.

AU - Gervasini, A.

AU - Giraudon, J. M.

AU - Su, B. L.

AU - Lamonier, J. F.

PY - 2014/1/1

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N2 - 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.

AB - 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.

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

Résumé

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Contient cette citation

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