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Controlled synthesis of Pt-Sn/C fuel cell catalysts with exclusive Sn–Pt interaction: Application in CO and ethanol electrooxidation reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
47713 46481 2009 9 PDF Available
Title
Controlled synthesis of Pt-Sn/C fuel cell catalysts with exclusive Sn–Pt interaction: Application in CO and ethanol electrooxidation reactions
Abstract

A series of Sn modified carbon supported Pt electrocatalysts displaying an increasing amount of the Pt3Sn crystalline phase within their structure has been prepared by using controlled surface reactions (CSRs). This synthetic route results in the exclusive incorporation of Sn onto the Pt sites yielding Pt(1−x)Snx and Pt3Sn phases. As demonstrated by X-ray diffraction and transmission electron microscopy the amount of the Pt3Sn phase within the electrocatalysts can be controlled by tuning the reaction conditions in CSRs. CO and ethanol electrooxidation reactions were studied over these new type of Sn-Pt/C catalysts, demonstrating that the presence of the Pt3Sn structure effectively facilitates both processes, particularly the ethanol electrooxidation.

Keywords
PtSn/C electrocatalysts; Controlled surface reactions; Pt3Sn; Sn–Pt interaction; Ethanol; Electrooxidation
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Controlled synthesis of Pt-Sn/C fuel cell catalysts with exclusive Sn–Pt interaction: Application in CO and ethanol electrooxidation reactions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 91, Issues 1–2, 7 September 2009, Pages 83–91
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
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Any Questions? feel free to contact us