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Diesel soot combustion on potassium promoted hydrotalcite-based mixed oxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52552 46877 2007 4 PDF Available
Title
Diesel soot combustion on potassium promoted hydrotalcite-based mixed oxide catalysts
Abstract

KNO3 or K2CO3 supported Mg–Al hydrotalcite-based mixed oxide catalysts were investigated for the catalytic combustion of diesel soot. The activity of the catalysts before and after reactions with soot was conducted under the flow of air and high purity He gas. It has been found that K shows a great promotion of the catalytic activity, and deactivation was not detected after the reaction with soot in a muffle furnace in a static air atmosphere. The active phases were examined by XRD. The high activity is found to be due to an interaction between K and Mg(Al), which may weaken the Mg(Al)–O bonds, thus facilitating the mobility of the O species.

Keywords
Soot combustion; Hydrotalcite; Potassium; NOx storage
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Diesel soot combustion on potassium promoted hydrotalcite-based mixed oxide catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 11, November 2007, Pages 1621–1624
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
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