bei Google ScholarTitelangaben
Klyushin, Alexander Yu. ; Greiner, Mark T. ; Huang, Xing ; Lunkenbein, Thomas ; Li, Xuan ; Timpe, Olaf ; Friedrich, Matthias ; Hävecker, Michael ; Knop-Gericke, Axel ; Schlögl, Robert:
Is Nanostructuring Sufficient To Get Catalytically Active Au?
In: ACS Catalysis.
Bd. 6
(2016)
Heft 5
.
- S. 3372-3380.
ISSN 2155-5435
DOI: https://doi.org/10.1021/acscatal.5b02631
Abstract
Gold nanoparticles on transition-metal oxides were synthesized by two different methods: precipitation and photoinduced decomposition of an intermediate gold-azido complex. Only samples prepared by the precipitation method showed significant CO conversion at low temperature. XPS shows the formation of two Au species (Au-0 and Au delta+) on the surface of active Au/TiO2 and Au/Fe2O3 samples. The energy shift of the Au delta+ peak depends on the support and is 0.6 and 0.9 eV for Au/TiO2 and Au/Fe2O3, respectively. TEM images indicate the formation of overlayer on Au particles. These results prove Au activation via a strong metal-support interaction, on the basis of the strong influence of the support on the electronic structure of the gold through charge transfer and stabilization of low-coordinated Au atoms.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | WOS:000375894500077 |
| 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 08:59 |
| Letzte Änderung: | 13 Jun 2025 08:59 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93729 |