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Frei, Elias ; Gaur, Abhijeet ; Lichtenberg, Henning ; Heine, Christian ; Friedrich, Matthias ; Greiner, Mark ; Lunkenbein, Thomas ; Grunwaldt, Jan-Dierk ; Schlögl, Robert:
Activating a Cu/ZnO: Al catalyst - Much More than Reduction : Decomposition, Self-Doping and Polymorphism.
In: ChemCatChem.
Bd. 11
(2019)
Heft 6
.
- S. 1587-1592.
ISSN 1867-3899
DOI: https://doi.org/10.1002/cctc.201900069
Abstract
The activation of Cu/ZnO-based catalysts before their application is a key step and sensitive process enabling the development of the entire catalytic potential. Here, we report on a complementary (soft and hard) in-situ X-ray absorption spectroscopy (XAS) study investigating in detail the changes of a Cu/ZnO: Al catalyst upon thermal treatment in reducing atmosphere (10% H-2) at ambient pressure. The spectroscopic features of Cu, Zn and Al are investigated. Beyond the reduction event of the Cu moieties, the role of high temperature carbonate and the Al-dopant is discussed up to the consequences for the ZnO polymorphism. The stability of the observed effects and thus their catalytic relevance are validated by operando XAS under reverse water gas-shift conditions.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | WOS:000463960000003 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 13 Jun 2025 07:29 |
| Letzte Änderung: | 13 Jun 2025 07:29 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93711 |