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

Trens, P., Stathopoulos, V. , Hudson, M.J. and Pomonis, P. (2004) Synthesis and characterization of packed mesoporous tungsteno-silicates: application to the catalytic dehydrogenation of 2-propanol. Applied Catalysis A - General, 263 (1). pp. 103-108. ISSN 0926-860X

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To link to this item DOI: 10.1016/j.apcata.2003.12.004

Abstract/Summary

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. (C) 2003 Elsevier B.V. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11673
Uncontrolled Keywords:catalysis, mesoporous materials, silica, IPA, dehydrogenation , MOLECULAR-SIEVE, ISOBUTANE/BUTENE ALKYLATION, SURFACE, DEHYDRATION, MCM-41, CLAYS, CONVERSION, MOLYBDENUM, H3PW12O40, ACIDITY

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