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Liquid phase trans-stilbene epoxidation over catalytically active cobalt substituted TUD-1 mesoporous materials (Co-TUD-1) using molecular oxygen

Paper ID Volume ID Publish Year Pages File Format Full-Text
42464 45926 2009 7 PDF Available
Title
Liquid phase trans-stilbene epoxidation over catalytically active cobalt substituted TUD-1 mesoporous materials (Co-TUD-1) using molecular oxygen
Abstract

A series of framework substituted Co-TUD-1 catalysts, prepared by direct hydrothermal synthesis, were characterized using X-ray diffraction, nitrogen physisorption, transmission electron microscopy and UV–vis and Raman spectroscopies. These catalysts showed high conversion and selectivity towards trans-stilbene oxide in liquid phase trans-stilbene epoxidation with molecular oxygen as oxidant in the absence of a sacrificial reductant. The conversion and selectivity did not remarkably differentiate for fresh and recycled catalyst after four reaction runs. The unique pore structure of Co-TUD-1 catalyst is suggested to be beneficial for the epoxidation of bulky alkene molecules comparing with other well-established catalysts, e.g., Co-MCM-41 and Co2+-NaX. Microwave irradiation can significantly shorten the reaction time, whereas high conversion and epoxide selectivity remained.

Graphical abstractThe unique pore structure of Co-TUD-1 catalyst is suggested to be beneficial for the epoxidation of bulky alkene molecules, e.g., trans-stilbene with molecular oxygen, comparing with other well-established catalysts, e.g., Co-MCM-41 and Co2+-NaX. Microwave irradiation can significantly shorten the reaction time, whereas high conversion and epoxide selectivity remained.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Co-TUD-1; trans-Stilbene; Epoxidation; Molecular oxygen; Microwave
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Liquid phase trans-stilbene epoxidation over catalytically active cobalt substituted TUD-1 mesoporous materials (Co-TUD-1) using molecular oxygen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 361, Issues 1–2, 20 June 2009, Pages 130–136
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
Online Support
Any Questions? feel free to contact us