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Characterisation, acidity and catalytic activity of Ga–SBA-15 materials prepared following different synthesis procedures

Paper ID Volume ID Publish Year Pages File Format Full-Text
44214 46009 2006 10 PDF Available
Title
Characterisation, acidity and catalytic activity of Ga–SBA-15 materials prepared following different synthesis procedures
Abstract

Incorporation or grafting of gallium atoms in/on mesoporous SBA-15 silicas was carried out using four different procedures. The structure and texture of the materials obtained were characterised by classical methods (X-ray diffraction, TEM, porosimetry measurements, XPS, 71Ga NMR spectroscopy). Acidity of the solids was evaluated by ammonia adsorption, TPD of this gas and FTIR spectroscopy of adsorbed probes (2,6-dimethylpyridine and deuterated acetonitrile). Catalytic activity was tested first in the isomerisation of α-pinene and second in the oxidative cleavage of cyclohexene oxide. In this latter case, the results are compared with those obtained in the presence of Al–SBA-15 catalysts prepared under similar conditions.

Keywords
Gallia–silica; Grafting; Co-hydrolysis; Acidity characterisation; α-Pinene isomerisation
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Characterisation, acidity and catalytic activity of Ga–SBA-15 materials prepared following different synthesis procedures
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 309, Issue 2, 1 August 2006, Pages 177–186
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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