at Google ScholarTitle data
Gatla, Suresh ; Aubert, Daniel ; Flaud, Valérie ; Grosjean, Rémi ; Lunkenbein, Thomas ; Mathon, Olivier ; Pascarelli, Sakura ; Kaper, Helena:
Facile synthesis of high-surface area platinum-doped ceria for low temperature CO oxidation.
In: Catalysis Today.
Vol. 333
(2019)
.
- pp. 105-112.
ISSN 0920-5861
DOI: https://doi.org/10.1016/j.cattod.2018.06.032
Abstract in another language
Using a simple slow decomposition method of nitrate precursors, high-surface area platinum-doped ceria with a crystallite size of 9 nm can be prepared. The catalytic performance of the compound can be tuned by changing the reduction temperature under hydrogen (300 degrees C, 500 degrees C and 700 degrees C). The catalyst treated at 300 degrees C shows the best catalytic performance, being active at room temperature. The materials were analysed using a combination of structural characterization methods (X-ray diffraction (XRD), nitrogen physisorption, high angle annular dark field scanning transmission electron microscopy (HAADF-STEM)), surface sensitive methods (X-ray photoelectron spectroscopy (XPS), H-2-chemisorption and H-2-temperature-programmed reduction (TPR)) and X-ray absorption fluorescence spectroscopy (XAFS). HAADF-STEM and XAFS analysis suggests successful doping of platinum in the ceria lattice. After pretreatment at 300 degrees C, the situation is slightly different. While no defined platinum nanoparticles can be identified on the surface, some platinum is in a reduced state (XPS, H-2-chemisorption).
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | WOS:000470828100014 |
| Keywords: | CO oxidation; Platinum-cerium oxide catalyst; Platinum-doped cerium oxide; Oxidation state; Heterogeneous catalysis |
| 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: | 12 Jun 2025 13:14 |
| Last Modified: | 04 Jul 2025 11:32 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93708 |