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Bimetallic Pt―Cu catalysts for glycerol oxidation with oxygen in a base-free aqueous solution

Paper ID Volume ID Publish Year Pages File Format Full-Text
52186 46866 2011 4 PDF Available
Title
Bimetallic Pt―Cu catalysts for glycerol oxidation with oxygen in a base-free aqueous solution
Abstract

A series of carbon supported bimetallic Pt―Cu catalysts were prepared and used for glycerol oxidation with oxygen in a base-free aqueous solution. It was found that bimetallic Pt―Cu/C was more active than monometallic Pt/C towards selective oxidation of glycerol to glyceric acid. The selectivity of free glyceric acid reached 70.8% at an 86.2% conversion of glycerol over 5Pt―Cu/C. Highly dispersed bimetallic Pt―Cu nanoparticles with small particle size in dominant alloyed phase of PtCu3 were confirmed by XRD and TEM in the bimetallic Pt―Cu/C catalyst, which is proposed to contribute to the improved performance.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Selective oxidation of glycerol was performed on Pt―Cu/C in base-free conditions. ► All Cu modified Pt/C catalysts exhibited higher activity than the corresponding parent Pt/C. ► 3Pt–Cu/C (3 wt.%) exhibited higher activity than 5Pt/C (5 wt.%). ► Highly dispersed PtCu3 alloy was proposed to contribute to the improved performance.

Keywords
Glycerol oxidation; Pt–Cu catalysts; Base-free; Carbon supports
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Bimetallic Pt―Cu catalysts for glycerol oxidation with oxygen in a base-free aqueous solution
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 12, 1 July 2011, Pages 1059–1062
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