Structural studies on iron-based exhaust gas catalysts by means of X-ray absorption spectroscopy
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 |
| Publikationsjahr | 2014 |
| Sprache | Englisch |
| Identifikator | urn:nbn:de:swb:90-479650 KITopen-ID: 1000047965 |
| Verlag | Karlsruher Institut für Technologie (KIT) |
| Art der Arbeit | Dissertation |
| Fakultät | Fakultät für Chemie und Biowissenschaften (CHEM-BIO) |
| Institut | Institut für Technische Chemie und Polymerchemie (ITCP) |
| Prüfungsdaten | 20.10.2014 |
| Schlagwörter | Iron catalysts, X-ray absorption spectroscopy, XANES, EXAFS, pre-edge |
| Referent/Betreuer | Grunwaldt, J.-D. |