Lohrenscheit, Marno ; Hess, Christian (2024)
Direct evidence for the participation of oxygen vacancies in CO oxidation over ceria supported gold catalysts using operando Raman spectroscopy.
In: ChemCatChem, 2015, 8 (3)
doi: 10.26083/tuprints-00028218
Artikel, Zweitveröffentlichung, Postprint
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Supported gold catalysts are highly active for a variety of reactions, including low‐temperature CO oxidation. It has been shown that reducible support materials, for example, ceria and titania, may significantly alter catalytic performance. However, the current understanding of the CO oxidation mechanism of such gold catalysts is still incomplete, as important details such as the activation of oxygen and the role of oxygen vacancies are unknown. To elucidate the role of the ceria support during room‐temperature CO oxidation, we employed operando Raman spectroscopy by simultaneously recording the Raman spectra of the catalyst and the gas‐phase FTIR spectra. Our results give first direct spectroscopic evidence for the participation of oxygen vacancies in the oxidation of CO over ceria‐supported gold, which thus underlines the crucial role of the support material for detailed understanding of the mode of operation of supported gold catalysts.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Lohrenscheit, Marno ; Hess, Christian |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Direct evidence for the participation of oxygen vacancies in CO oxidation over ceria supported gold catalysts using operando Raman spectroscopy |
| Sprache: | Englisch |
| Publikationsjahr: | 29 Oktober 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 17 Dezember 2015 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ChemCatChem |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 3 |
| Kollation: | 6 ungezählte Seiten |
| DOI: | 10.26083/tuprints-00028218 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/28218 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | Supported gold catalysts are highly active for a variety of reactions, including low‐temperature CO oxidation. It has been shown that reducible support materials, for example, ceria and titania, may significantly alter catalytic performance. However, the current understanding of the CO oxidation mechanism of such gold catalysts is still incomplete, as important details such as the activation of oxygen and the role of oxygen vacancies are unknown. To elucidate the role of the ceria support during room‐temperature CO oxidation, we employed operando Raman spectroscopy by simultaneously recording the Raman spectra of the catalyst and the gas‐phase FTIR spectra. Our results give first direct spectroscopic evidence for the participation of oxygen vacancies in the oxidation of CO over ceria‐supported gold, which thus underlines the crucial role of the support material for detailed understanding of the mode of operation of supported gold catalysts. |
| Freie Schlagworte: | ceria, gold, nanoparticles, oxidation, Raman spectroscopy |
| Status: | Postprint |
| URN: | urn:nbn:de:tuda-tuprints-282184 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 29 Okt 2024 13:20 |
| Letzte Änderung: | 30 Okt 2024 09:19 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- Direct evidence for the participation of oxygen vacancies in CO oxidation over ceria supported gold catalysts using operando Raman spectroscopy. (deposited 29 Okt 2024 13:20) [Gegenwärtig angezeigt]
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum