In situ characterization by Raman and IR vibrational spectroscopies on a single instrument: DeNOx reaction over a Pd/γ-Al2O3 catalyst

G. Le Bourdon; F. Adar; M. Moreau; S. Morel; J. Reffner; A.-S. Mamede; C. Dujardin; E. Payen

doi:10.1039/B306045B

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In situ characterization by Raman and IR vibrational spectroscopies on a single instrument: DeNO_x reaction over a Pd/γ-Al₂O₃ catalyst†

G. Le Bourdon,^a F. Adar,^a M. Moreau,^a S. Morel,^a J. Reffner,^b A.-S. Mamede,^c C. Dujardin^c and E. Payen^c

Author affiliations

^a Jobin Yvon Horiba, Villeneuve d'Ascq, France
E-mail: glebourdon@jyhoriba.fr

^b SensIR, Danbury, USA
E-mail: jreffner@sensir.com

^c Laboratoire de Catalyse de Lille, UMR 8010, Bât. C3, USTL, Villeneuve d'Ascq, France
E-mail: edmond.payen@univ-lille1.fr
Fax: +33 3 20 43 65 61
Tel: +33 3 20 43 49 49

Abstract

For the first time, in situ Raman and FTIR measurements have been carried out on a single bench-top instrument to characterize an alumina-supported palladium during the catalytic DeNO_x reaction. While IR spectroscopy gives access to dedicated information on the NO_x adsorbed species, Raman spectroscopy is highly sensitive to the molecular structure modifications of the active phase and allows us to characterize the adsorbed species as well as their bonds with the support. The ability to monitor the very same reaction via both techniques in a quasi-simultaneous approach provides full and complementary vibrational information giving a better insight into the catalytic reaction.

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Article information

DOI: https://doi.org/10.1039/B306045B
Article type: Paper
Submitted: 28 May 2003
Accepted: 02 Sep 2003
First published: 18 Sep 2003

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Phys. Chem. Chem. Phys., 2003,5, 4441-4444

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In situ characterization by Raman and IR vibrational spectroscopies on a single instrument: DeNO_x reaction over a Pd/γ-Al₂O₃ catalyst

G. Le Bourdon, F. Adar, M. Moreau, S. Morel, J. Reffner, A.-S. Mamede, C. Dujardin and E. Payen, Phys. Chem. Chem. Phys., 2003, 5, 4441 DOI: 10.1039/B306045B

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