fulltext.study @t Gmail

Particle size effects for carbon nanofiber supported platinum and ruthenium catalysts for the selective hydrogenation of cinnamaldehyde

Paper ID Volume ID Publish Year Pages File Format Full-Text
42622 45934 2008 7 PDF Available
Title
Particle size effects for carbon nanofiber supported platinum and ruthenium catalysts for the selective hydrogenation of cinnamaldehyde
Abstract

The selective hydrogenation of cinnamaldehyde was studied over carbon nanofibers (CNF) supported platinum and ruthenium catalysts. The catalysts differed independently in their metal particle sizes and amount of acidic oxygen groups on the CNF surface. For the catalysts with oxygen on the CNF surface, the larger metal particles (∼3.5 nm) displayed the highest selectivity towards cinnamyl alcohol. Surprisingly, when the oxygen groups were removed from the catalyst surface, the smaller particles (∼2.0 nm) exhibited the highest selectivity to cinnamyl alcohol. Also the hydrogenation activity increased for all catalysts after oxygen removal. A model is proposed to account for the role of the metal particle size and oxygen surface groups in the hydrogenation of cinnamaldehyde.

Graphical abstractCinnamaldehyde hydrogenation was studied over carbon nanofibers (CNF) supported platinum and ruthenium catalysts. Catalysts with oxygen surface groups and larger metal particles resulted in the highest selectivity towards cinnamyl alcohol. Surprisingly, when the oxygen surface groups were removed, smaller metal particles exhibited the highest selectivity to cinnamyl alcohol. A model is proposed to explain this catalytic behavior. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Platinum catalysts; Ruthenium catalysts; Carbon nanofibers; Particle size effect; Cinnamaldehyde hydrogenation
First Page Preview
Particle size effects for carbon nanofiber supported platinum and ruthenium catalysts for the selective hydrogenation of cinnamaldehyde
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 351, Issue 1, 15 December 2008, Pages 9–15
Authors
, , , , ,
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