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Using combined XAS/DRIFTS to study CO/NO Oxidation over Pt/Al2O3 catalysts

Gänzler, A M; Lichtenberg, H; Frenkel, A I; Casapu, M; Boubnov, A; Wang, D; Grunwaldt, J-D

Abstract:
Combined X-ray absorption spectroscopy (XAS) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) were applied to investigate the interaction between reaction atmosphere, adsorbates and Pt oxidation state of Pt/Al$_{2}$O$_{3}$ model diesel oxidation catalysts under CO/NO oxidation conditions. The Pt oxidation state was correlated to the adsorbates on the catalyst’s surface. Even at low temperature the reaction atmosphere had a strong impact on the oxidation state of the catalyst, and the oxidation state in turn strongly affected CO adsorption on the Pt particles.

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Volltext §
DOI: 10.5445/IR/1000068548
Originalveröffentlichung
DOI: 10.1088/1742-6596/712/1/012045
Scopus
Zitationen: 2
Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Institut für Nanotechnologie (INT)
Institut für Katalyseforschung und -Technologie (IKFT)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 1742-6588, 1742-6596
urn:nbn:de:swb:90-685486
KITopen-ID: 1000068548
HGF-Programm 43.22.02 (POF III, LK 01)
Erschienen in Journal of physics / Conference Series
Band 712
Heft 1
Seiten Art. Nr.: 012045
Bemerkung zur Veröffentlichung 16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015; Karlsruhe Institute of Technology (KIT)Karlsruhe; Germany; 23 August 2015 through 28 August 2015
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