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Topics in Catalysis
Published in: Topics in Catalysis 1-8/2013

01-05-2013 | Original Paper

TAP Investigation of NO Adsorption on Pd/Al2O3: Effect of Thermal Aging

Authors: F. Dhainaut, Y. Renème, S. Pietrzik, Y. Schuurman, C. Mirodatos, P. Granger

Published in: Topics in Catalysis | Issue 1-8/2013

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Abstract

This paper deals with the aging effect on the kinetics of the NO decomposition on a commercial Pd/Al2O3 catalyst. Temporal analysis of products experiments are discussed in the light of a selected mechanism involving the recombination of two NOads species to form N2O, which is an intermediate in N2 formation. Experiments over the fresh catalyst indicate a strong metal/support interface, with a spill-over effect, which is difficult to model. Thermal aging had a detrimental effect over this interface, the kinetic features depending mainly on the metallic Pd sites. The different heats of adsorption and activation energies are proven consistent with other theoretical studies. The mechanism led to a high surface coverage for O ad-atoms.
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Metadata
Title
TAP Investigation of NO Adsorption on Pd/Al2O3: Effect of Thermal Aging
Authors
F. Dhainaut
Y. Renème
S. Pietrzik
Y. Schuurman
C. Mirodatos
P. Granger
Publication date
01-05-2013
Publisher
Springer US
Published in
Topics in Catalysis / Issue 1-8/2013
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-013-9967-7

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