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Catalytic properties of Ru-mordenite for NO reduction

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Title Catalytic properties of Ru-mordenite for NO reduction
 
Creator Labhsetwar , Nitin
Minamino, H
Mukherjee, M
Mitsuhashi, T
Rayalu, S
Dhakad, M
Haneda, H
Subrt, J
Devotta, S
 
Subject Materials Science
 
Description The reduction of NO by CO over H and Na forms of Ru exchanged mordenite has been studied with ruthenium content of 0.2, 1 and 3 wt.%. The
catalysts were characterized with respect to X-ray diffraction, BET surface area, temperature programmed oxidation, and temperature programmed
desorption of ammonia. These catalysts have been evaluated for their activity for NO–CO reaction using a steady state gas laboratory evaluation
assembly. The catalysts show high activity for NO reduction and almost 100% conversion of NO to N2 was observed below 400 ◦C. The activity
was found to be a factor of ruthenium content, however, Ru-mordenite in Na form was observed to be relatively more active than Ru-mordenite
in H form, probably due to the electron donation from sodium to ruthenium sites. New zeolite phases with improved hydrothermal stability, high
surface area and reasonable cation exchange properties can be potential materials for catalytic reduction of NOx. Introduction of active metal ions
through ion exchange insures their high dispersion in zeolite supports, which also offer tailoring possibilities for DeNOx catalysts.
 
Publisher Elsevier
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/994/1/labhsetwar2007%281%29.pdf
Labhsetwar , Nitin and Minamino, H and Mukherjee, M and Mitsuhashi, T and Rayalu, S and Dhakad, M and Haneda, H and Subrt, J and Devotta, S (2007) Catalytic properties of Ru-mordenite for NO reduction. Journal of Molecular Catalysis A: Chemical, 261. pp. 213-217. ISSN 1381-1169
 
Relation http://www.sciencedirect.com/science/article/pii/S1381116906011083
http://neeri.csircentral.net/994/