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Electrochemical activation of Pt catalyst by potassium for low temperature CO deep oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
52364 46872 2008 4 PDF Available
Title
Electrochemical activation of Pt catalyst by potassium for low temperature CO deep oxidation
Abstract

This study exposes, for the first time, the effect of Electrochemical Promotion (EPOC) by potassium cations on Pt catalyst for low temperature CO oxidation process. The effect of catalyst polarization drastically increased the catalytic rate for more than 11 times by decreasing the light-off temperature by almost 40 °C. The promotional phenomenon was found to be reversible due to the formation and decomposition of potassium compounds on Pt surface that enhanced the adsorption of O2 at the expense of CO. The achieved results demonstrated that Electrochemical Promotion of Catalysis could be applied to improve the performance of catalytic converters at lower temperatures.

Keywords
CO oxidation; Electrochemical Promotion; NEMCA effect; Platinum catalyst; Potassium promoter
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Electrochemical activation of Pt catalyst by potassium for low temperature CO deep oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 1, January 2008, Pages 17–20
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