Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 89-104 |
| Seitenumfang | 16 |
| Fachzeitschrift | Zeitschrift fur Physikalische Chemie |
| Jahrgang | 223 |
| Ausgabenummer | 1-2 |
| Publikationsstatus | Veröffentlicht - 25 Sept. 2009 |
Abstract
Catalytic CO oxidation in a ternary gas mixture of CO, NO and O2 has been studied in the 10-5-10-4 mbar range using a Pt(100) sample as catalyst. Measurements of the reactive sticking coefficients of CO and NO are used to decompose the overall CO oxidation rate into the contributions from oxidation by NO and from oxidation by O2. The experiments are complemented by simulations with a realistic 7-variable model. The surface phase transition hex ↔ 1×1 and the inhibition of NO dissociation and O2 adsorption at high adsorbate coverages lead to significant hysteresis effects.
ASJC Scopus Sachgebiete
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Zeitschrift fur Physikalische Chemie, Jahrgang 223, Nr. 1-2, 25.09.2009, S. 89-104.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - CO oxidation over a Pt(100) surface in a ternary gas mixture of CO, NO, and oxygen
AU - Imbihl, R.
AU - Schütz, E.
PY - 2009/9/25
Y1 - 2009/9/25
N2 - Catalytic CO oxidation in a ternary gas mixture of CO, NO and O2 has been studied in the 10-5-10-4 mbar range using a Pt(100) sample as catalyst. Measurements of the reactive sticking coefficients of CO and NO are used to decompose the overall CO oxidation rate into the contributions from oxidation by NO and from oxidation by O2. The experiments are complemented by simulations with a realistic 7-variable model. The surface phase transition hex ↔ 1×1 and the inhibition of NO dissociation and O2 adsorption at high adsorbate coverages lead to significant hysteresis effects.
AB - Catalytic CO oxidation in a ternary gas mixture of CO, NO and O2 has been studied in the 10-5-10-4 mbar range using a Pt(100) sample as catalyst. Measurements of the reactive sticking coefficients of CO and NO are used to decompose the overall CO oxidation rate into the contributions from oxidation by NO and from oxidation by O2. The experiments are complemented by simulations with a realistic 7-variable model. The surface phase transition hex ↔ 1×1 and the inhibition of NO dissociation and O2 adsorption at high adsorbate coverages lead to significant hysteresis effects.
KW - Carbon monoxide
KW - Catalysis
KW - Nitrogen monoxide
KW - Oxygen platinum
UR - http://www.scopus.com/inward/record.url?scp=65949097474&partnerID=8YFLogxK
U2 - 10.1524/zpch.2009.6026
DO - 10.1524/zpch.2009.6026
M3 - Article
AN - SCOPUS:65949097474
VL - 223
SP - 89
EP - 104
JO - Zeitschrift fur Physikalische Chemie
JF - Zeitschrift fur Physikalische Chemie
SN - 0942-9352
IS - 1-2
ER -