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Topics in Catalysis
Published in: Topics in Catalysis 3-5/2017

09-05-2016 | Original Paper

Simultaneous Removal of Soot and NOx Over Silver and Ruthenium-Based Catalysts

Authors: Lidia Castoldi, Eleonora Aneggi, Roberto Matarrese, Rossella Bonzi, Alessandro Trovarelli, Luca Lietti

Published in: Topics in Catalysis | Issue 3-5/2017

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Abstract

Silver- and ruthenium-based materials are herein investigated for the simultaneous removal of particulate matter (soot) and NOx and their behaviour is compared with that of a model Pt–Ba/Al2O3 catalyst. The catalytic activity for diesel soot combustion, in loose contact conditions, is studied by means of TPO (temperature programmed oxidation) while NOx removal is investigated through NOx Storage-Reduction cycles (SRC), performed both in the presence and in the absence of soot. Both the Ag- and Ru-based formulations result active in the soot oxidation, more than the traditional Pt-containing DPNR catalyst. Also, the Ru-based sample shows remarkable performances in the DeNOx-DeSoot activity, although its activity in the reduction step of the stored NOx still needs further improvements.
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Metadata
Title
Simultaneous Removal of Soot and NOx Over Silver and Ruthenium-Based Catalysts
Authors
Lidia Castoldi
Eleonora Aneggi
Roberto Matarrese
Rossella Bonzi
Alessandro Trovarelli
Luca Lietti
Publication date
09-05-2016
Publisher
Springer US
Published in
Topics in Catalysis / Issue 3-5/2017
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-016-0599-6

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