An EPR investigation on the reactivity of oxygen from ceria modified bimetallic Pt-Rh/Al2O3 catalysts in the CO plus NO reaction

Citation
Jj. Lecomte et al., An EPR investigation on the reactivity of oxygen from ceria modified bimetallic Pt-Rh/Al2O3 catalysts in the CO plus NO reaction, COLL SURF A, 158(1-2), 1999, pp. 241-247
Citations number
28
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
158
Issue
1-2
Year of publication
1999
Pages
241 - 247
Database
ISI
SICI code
0927-7757(19991110)158:1-2<241:AEIOTR>2.0.ZU;2-F
Abstract
The CO + NO reaction has been studied on Pt-Rh/Al2O3-CeO2 at P-NO = 5.6 x 1 0(-3) atm and P-CO = 5 x 10(-3) atm between 25 and 500 degrees C. EPR techn ique was used to investigate the mechanism of this reaction. O-2(-) species were detected after reaction and it seems that their formation is closely related to changes in catalytic performances of Pt-Rh/Al2O3-CeO2. (C) 1999 Elsevier Science B.V. All rights reserved.