at Google ScholarTitle data
Gatla, Suresh ; Aubert, Daniel ; Agostini, Giovanni ; Mathon, Olivier ; Pascarelli, Sakura ; Lunkenbein, Thomas ; Willinger, Marc Georg ; Kaper, Helena:
Room-Temperature CO Oxidation Catalyst : Low-Temperature Metal-Support Interaction between Platinum Nanoparticles and Nanosized Ceria.
In: ACS Catalysis.
Vol. 6
(2016)
Issue 9
.
- pp. 6151-6155.
ISSN 2155-5435
DOI: https://doi.org/10.1021/acscatal.6b00677
Abstract in another language
Platinum nanoparticles dispersed on nanosized ceria are active for CO oxidation at room temperature after hydrogen pretreatment. High angular annular dark field scanning transmission electron microscopy (HAADF-STEM) analysis of the reduced catalyst shows spreading of the 1 nm sized platinum particles under the electron beam, characteristic for a two-dimensional strong metal support interaction. In situ X-ray absorption fluorescence spectroscopy (XAFS) reveals a Pt-O distance of 2.1 angstrom, which is significantly longer than the Pt-O distance in PtO2 (2.0 angstrom). This elongated Pt-O distance can be related to interaction of the platinum species with cerium oxide in the form of a low-temperature active species support interaction. These findings contribute to the general understanding of catalytic systems operating at low temperature.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | WOS:000382714000058 |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Operando-Analytics of Electrochemical Energy Storage > Chair Operando-Analytics of Electrochemical Energy Storage - Univ.-Prof. Dr. Thomas Lunkenbein Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Operando-Analytics of Electrochemical Energy Storage |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Date Deposited: | 13 Jun 2025 08:32 |
| Last Modified: | 04 Jul 2025 11:32 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93727 |