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Unexpected mononuclear W(VI) complexes containing phosphonate ligands anchored on mesoporous silica. Another strategy for immobilization

Paper ID Volume ID Publish Year Pages File Format Full-Text
51959 46860 2008 4 PDF Available
Title
Unexpected mononuclear W(VI) complexes containing phosphonate ligands anchored on mesoporous silica. Another strategy for immobilization
Abstract

Tungsten species have been immobilized onto the surface of mesoporous silica SBA-15 modified by diethylphosphatoethyltriethoxysilane. As a result, a novel tungsten catalyst named HPWX-SBA has been prepared. The physicochemical properties of this novel catalyst have been studied through various characterization methods such as ICP, FT-IR, Raman and 31P NMR. The fine structure of the tungsten species on the surface of HPWX-SBA has been proposed. It is found that HPWX-SBA shows high conversion and selectivity in the selective oxidation of cyclopentene to produce glutaraldehyde using H2O2 as oxidant and can preserve high activity after several cycles of reaction.

Keywords
Tungsten; Immobilization; Organic phosphonic acid; Oxidation
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Unexpected mononuclear W(VI) complexes containing phosphonate ligands anchored on mesoporous silica. Another strategy for immobilization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 9, 15 May 2008, Pages 1838–1841
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us