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URN: urn:nbn:de:swb:90-479650

Structural studies on iron-based exhaust gas catalysts by means of X-ray absorption spectroscopy

Boubnov, Alexey

Abstract:
X-ray absorption near-edge structure (XANES) and pre-edge spectroscopy of supported iron oxide catalysts showed that the state of the catalytic sites varies between Fe2+ and Fe3+ without altering the number of nearest oxygen neighbours. The preferential location of Fe at the octahedral lattice sites of gamma-Al2O3 was verified by extended X-ray absorption fine structure (EXAFS). Valence-to-core X-ray emission spectroscopy (V2C-XES) gave new insight into intermediate species during catalytic deNOx.


Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Hochschulschrift
Jahr 2014
Sprache Englisch
Identifikator KITopen ID: 1000047965
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Chemie und Biowissenschaften (CHEM-BIO)
Institut Institut für Technische Chemie und Polymerchemie (ITCP)
Prüfungsdaten 20.10.2014
Referent/Betreuer Prof. J.-D. Grunwaldt
Schlagworte Iron catalysts, X-ray absorption spectroscopy, XANES, EXAFS, pre-edge
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