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Direct propylene epoxidation with H2 and O2 over In modified Au/TS-1 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51256 46836 2012 4 PDF Available
Title
Direct propylene epoxidation with H2 and O2 over In modified Au/TS-1 catalysts
Abstract

A series of In promoted Au/TS-1 catalysts was prepared and tested for direct propylene epoxidation with H2 and O2. The In promotion could effectively enhance the reactivity and stability of the catalysts. A PO formation rate of 56 gPO h− 1 kgcat− 1 was obtained over a 0.57Au/0.4In-TS-1 catalyst, which was about 80% enhancement compared to an un-promoted 0.25Au/TS-1 catalyst (32 gPO h− 1 kgcat− 1). The enhancement was due to a higher Au capture efficiency by the modification of In on the TS-1 surface, and a higher dispersion of Au species in the catalyst.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► In-promoted Au/TS-1 are effective for direct propylene epoxidation with H2 and O2. ► The enhancement was due to higher Au capture efficiency in the promoted catalysts. ► Smaller Au particles in the promoted catalysts were beneficial for the reactivity. ► The In-promoted catalyst was more stable than the unpromoted sample.

Keywords
Propylene epoxidation; Au/TS-1 catalyst; In promotion; Au capture efficiency
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Direct propylene epoxidation with H2 and O2 over In modified Au/TS-1 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 28, 5 November 2012, Pages 179–182
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