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Low Cost, Ceria Promoted Perovskite Type Catalysts for Diesel Soot Oxidation

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Title Low Cost, Ceria Promoted Perovskite Type Catalysts
for Diesel Soot Oxidation
 
Creator Dhakad, M.
Rayalu, S S
Kumar, Rakesh
Doggali, Pradeep
Bakardjiva, S
Subrt, J
Mitsuhashi, T
Haneda, H
Labhsetwar, Nitin
 
Subject Materials Science
 
Description Perovskite type catalysts with SrCoO3 and
Sr0.8Ce0.2CoO3 compositions have been prepared by
co-precipitation and other methods and, their catalytic
activity towards diesel particulate matter (PM)/carbon
oxidation has been evaluated under the loose contact condition.
These catalysts show excellent catalytic activity for
PM/carbon oxidation, despite their low surface area and
under the loose contact condition. The synergistic effects of
Ce incorporation in perovskite and presence of a small
amount of potassium appears to be responsible for the high
soot oxidation activity of these perovskite type materials.
The Ce incorporation seems to be contributing by
enhancing the redox property of the catalyst, while it
appears unlikely that potassium is contributing by
improving the catalyst–soot contact through its volatization.
The catalysts show excellent thermal stability and
stable activity under repeated cycles of use.
 
Publisher Elsevier
 
Date 2008-02
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/999/1/dhakad2008%282%29.pdf
Dhakad, M. and Rayalu, S S and Kumar, Rakesh and Doggali, Pradeep and Bakardjiva, S and Subrt, J and Mitsuhashi, T and Haneda, H and Labhsetwar, Nitin (2008) Low Cost, Ceria Promoted Perovskite Type Catalysts for Diesel Soot Oxidation. Catalysis Letters , 121 (1-2). pp. 137-143. ISSN 1572-879X
 
Relation https://link.springer.com/article/10.1007/s10562-007-9310-7
http://neeri.csircentral.net/999/