fulltext.study @t Gmail

Controlling hydrogenation of CO and CC bonds in cinnamaldehyde using silica supported Co-Pt and Cu-Pt bimetallic catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
41034 45875 2012 7 PDF Available
Title
Controlling hydrogenation of CO and CC bonds in cinnamaldehyde using silica supported Co-Pt and Cu-Pt bimetallic catalysts
Abstract

Liquid phase hydrogenation of cinnamaldehyde was evaluated over SiO2 supported Co-Pt and Cu-Pt bimetallic and Co, Cu, Pt monometallic catalysts in a batch reactor. H2-temperature-programmed reduction (H2-TPR) was utilized to characterize the reduction behavior and pulse CO chemisorption measurement was performed to characterize the number of active sites of the catalysts. Transmission electron microscopy (TEM) analysis was used to characterize metallic particle size distribution and extended X-ray absorption structure (EXAFS) measurements were performed to verify the bimetallic bond formation. The reactor evaluation results show that Co-Pt and Cu-Pt bimetallic catalysts exhibit much higher hydrogenation activity than the corresponding monometallic catalysts, and Co-Pt shows much higher selectivity toward CO bond hydrogenation than Cu-Pt. The trend of hydrogenation activity and selectivity is consistent with previous studies of the hydrogenation of unsaturated aldehydes on model bimetallic surfaces.

Graphical abstract.Figure optionsDownload full-size imageDownload high-quality image (144 K)Download as PowerPoint slideHighlights► SiO2 supported bimetallic catalysts are used for cinnamaldehyde hydrogenation. ► Bimetallic catalysts are more active than monometallic catalysts. ► Co-Pt enhances CO bond hydrogenation while Cu-Pt prefers CC bond hydrogenation. ► Activity/selectivity trend is consistent with previous surface science studies.

Keywords
Hydrogenation; Cinnamaldehyde; Bimetallic Catalysts; Co-Pt; Cu-Pt
First Page Preview
Controlling hydrogenation of CO and CC bonds in cinnamaldehyde using silica supported Co-Pt and Cu-Pt bimetallic catalysts
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 - Volumes 419–420, 29 March 2012, Pages 126–132
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