Importance of hydrophobicity in the liquid phase oxidation catalyzed by titanosilicates

Importance of hydrophobicity in the liquid phase oxidation catalyzed by titanosilicates In the oxidation of alkanes, Ti-beta catalysts synthesized by the dry gel conversion method show higher turnover number and H2O2 selectivity than the conventionally synthesized ones, which is ascribed to higher hydrophobicity of the former. Trimethylsilylation of mesoporous materials is effective in enhancing the activity through increasing hydrophobicity. It has been revealed that the hydrophobicity of the catalysts whether microporous or mesoporous is a crucial factor in their activity in the liquid-phase oxidation of hydrophobic reactants such as alkanes and simple alkenes using aqueous H2O2 solutions as oxidant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Importance of hydrophobicity in the liquid phase oxidation catalyzed by titanosilicates

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Publisher
Springer Journals
Copyright
Copyright © 2000 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856700X00039
Publisher site
See Article on Publisher Site

Abstract

In the oxidation of alkanes, Ti-beta catalysts synthesized by the dry gel conversion method show higher turnover number and H2O2 selectivity than the conventionally synthesized ones, which is ascribed to higher hydrophobicity of the former. Trimethylsilylation of mesoporous materials is effective in enhancing the activity through increasing hydrophobicity. It has been revealed that the hydrophobicity of the catalysts whether microporous or mesoporous is a crucial factor in their activity in the liquid-phase oxidation of hydrophobic reactants such as alkanes and simple alkenes using aqueous H2O2 solutions as oxidant.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jul 7, 2009

References

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