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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.


Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -Technologie (IKFT)
Institut für Nanotechnologie (INT)
Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1088/1742-6596/712/1/012045
ISSN: 1742-6588, 1742-6596
URN: urn:nbn:de:swb:90-685486
KITopen ID: 1000068548
Erschienen in Journal of physics / Conference Series
Band 712
Heft 1
Seiten Art. Nr.: 012045
Lizenz CC BY 3.0 DE: Creative Commons Namensnennung 3.0 Deutschland
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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