Synthesis and characterization of packed mesoporous tungsteno-silicates: application to the catalytic dehydrogenation of 2-propanol

Philippe Trens; Vassilis Stathopoulos; Michael J. Hudson; Philippos Pomonis

doi:10.1016/j.apcata.2003.12.004

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Synthesis and characterization of packed mesoporous tungsteno-silicates: application to the catalytic dehydrogenation of 2-propanol

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Synthesis and characterization of packed mesoporous tungsteno-silicates: application to the catalytic dehydrogenation of 2-propanol

Philippe Trens, Vassilis Stathopoulos, Michael J. Hudson et Philippos Pomonis

Applied catalysis. A, General, Vol.263(1), pp.103-108

28/05/2004

DOI: https://doi.org/10.1016/j.apcata.2003.12.004

Résumé

Catalysis

Dehydrogenation

IPA

Mesoporous materials

Silica

The synthesis of highly ordered mesoporous tungsteno-silicas in which a high percentage of tungsten is introduced into a silica framework is reported hereafter. Powder XRD and TEM have been used to characterize the materials synthesized at room temperature. The materials are shown to be homogeneous as there is no evidence for any crystalline species other than the silica framework. The pore diameter and the surface area of the materials, evaluated from the nitrogen adsorption isotherms and unit cell parameter indicate a pore diameter of about 2 nm and a surface area of 1400 m 2 g −1 for a content of 10% tungsten. Catalyzed dehydration of 2-propanol has been investigated and the activity of the materials synthesized is significant, even for low tungsten content W-MCM-41 materials.

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Détails

Titre: Synthesis and characterization of packed mesoporous tungsteno-silicates: application to the catalytic dehydrogenation of 2-propanol
Créateurs - sans rôle: Philippe Trens - Department of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UK
Vassilis Stathopoulos - Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
Michael J. Hudson - Department of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6AD, UK
Philippos Pomonis - Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
Détails de publication: Applied catalysis. A, General, Vol.263(1), pp.103-108
Éditeur: Elsevier B.V
Nombre de pages: 6
Identifiants: 99138830109311
Unité académique: Institut Charles Gerhardt Montpellier - ICGM
Langue: English
Type de ressource: Journal article