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Hydrogenation and dehydrogenation reactions catalyzed by CNTs supported palladium catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
55489 47055 2012 6 PDF Available
Title
Hydrogenation and dehydrogenation reactions catalyzed by CNTs supported palladium catalysts
Abstract

Pd supported on carbon nanotubes (CNTs), Al2O3 and SiO2 were prepared by wet-impregnation method. The synthesized catalysts were characterized by BET, XPS, SEM and TEM. Hydrogenation of benzaldehyde and dehydrogenation of ethylbenzene over Pd/CNTs, Pd/r-Al2O3 and Pd/SiO2 were carried out in fixed bed phase reaction under an atmosphere pressure to test the activity and selectivity of the catalysts. Influence of temperature on activity and selectivity was investigated in both hydrogenation of benzaldehyde and dehydrogenation of ethylbenzene. The selectivity and conversion of obtained products were dependent on the nature of the support and reaction temperature. The Pd/CNTs showed a higher activity (100%) and selectivity to toluene (94.4%) in the hydrogenation. High selectivity (100%) towards the desired the product of styrene was achieved with conversion of ethylbenzene over 45.7% in the dehydrogenation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (118 K)Download as PowerPoint slideHighlights► Pd catalysts supported on carbon nanotubes (CNTs), Al2O3 and SiO2. ► Hydrogenation of benzaldehyde and dehydrogenation of ethylbenzene over those catalysts. ► The CNTs supported Pd catalyst showed the highest activity and selectivity.

Keywords
Carbon nanotubes; Pd catalyst; Hydrogenation; Dehydrogenaton
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Hydrogenation and dehydrogenation reactions catalyzed by CNTs supported palladium catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 186, Issue 1, 1 June 2012, Pages 109–114
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