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Pt/Ta2O5–ZrO2 catalysts for vapour phase selective hydrogenation of crotonaldehyde

Paper ID Volume ID Publish Year Pages File Format Full-Text
42818 45942 2008 5 PDF Available
Title
Pt/Ta2O5–ZrO2 catalysts for vapour phase selective hydrogenation of crotonaldehyde
Abstract

This paper reports a study on the effect of the support composition in Pt/Ta2O5–ZrO2 catalysts in regard to their catalytic behaviour in the vapour phase selective hydrogenation of crotonaldehyde (2-butenol). Two Ta2O5–ZrO2 supports with different Ta/Zr ratios and a pure Ta2O5 were prepared by a sol–gel route. The platinum catalysts were characterized by CO chemisorption, infrared spectroscopy of adsorbed CO and X-ray photoelectron spectroscopy (XPS). The best catalyst in terms of activity and selectivity to crotyl alcohol (2-butenol) was Pt/Ta2O5, and this behaviour is tentatively related to the metal–support interaction. On the other hand, under the experimental conditions used, the acidic properties of the supports could not be correlated to the catalytic behaviour of these materials.

Graphical abstractThis paper reports a study on the effect of the support composition in Pt/Ta2O5–ZrO2 in regard to their catalytic behaviour in the vapour phase hydrogenation of crotonaldehyde. Two Ta2O5–ZrO2 supports with different Ta/Zr ratios and a pure Ta2O5, were prepared by a sol–gel route. The Pt catalysts were characterized by CO chemisorption, infrared spectroscopy of adsorbed CO and X-ray photoelectron spectroscopy. The best catalyst in terms of activity and selectivity to crotyl alcohol was Pt/Ta2O5, and this has been related to the metal–support interaction. On the other hand, under the experimental conditions used, the acidity properties of supports do not significantly influence the catalytic behaviour of materials. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Crotonaldehyde hydrogenation; Ta2O5–ZrO2; Pt; SMSI
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Pt/Ta2O5–ZrO2 catalysts for vapour phase selective hydrogenation of crotonaldehyde
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 349, Issues 1–2, 31 October 2008, Pages 165–169
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