Details
| Original language | English |
|---|---|
| Pages (from-to) | 1-14 |
| Number of pages | 14 |
| Journal | Surface science |
| Volume | 577 |
| Issue number | 1 |
| Early online date | 13 Jan 2005 |
| Publication status | Published - 20 Feb 2005 |
Abstract
The kinetics of ammonia oxidation with oxygen have been investigated in the 10-5 and 10-4 mbar range on Pt(5 3 3) and Pt(4 4 3). Only N2 and NO but no N2O were detected as reaction products. The dependence of product formation on temperature and on the partial pressures of the reactants has been studied under steady state conditions. The reactive sticking coefficients were determined under reaction conditions with s reac of ammonia reaching nearly 0.2. The Pt(5 3 3) surface was found to be catalytically more active than Pt(4 4 3) by a factor of 2-4.
Keywords
- Ammonia oxidation, Kinetics, Platinum, Stepped platinum surface
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Materials Chemistry
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In: Surface science, Vol. 577, No. 1, 20.02.2005, p. 1-14.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Kinetics of ammonia oxidation on stepped platinum surfaces. I. Experimental results
AU - Scheibe, A.
AU - Lins, U.
AU - Imbihl, R.
N1 - Funding Information: This work was supported by the DFG under the priority program 1091 “Bridging the gap between ideal and real systems in heterogeneous catalysis”.
PY - 2005/2/20
Y1 - 2005/2/20
N2 - The kinetics of ammonia oxidation with oxygen have been investigated in the 10-5 and 10-4 mbar range on Pt(5 3 3) and Pt(4 4 3). Only N2 and NO but no N2O were detected as reaction products. The dependence of product formation on temperature and on the partial pressures of the reactants has been studied under steady state conditions. The reactive sticking coefficients were determined under reaction conditions with s reac of ammonia reaching nearly 0.2. The Pt(5 3 3) surface was found to be catalytically more active than Pt(4 4 3) by a factor of 2-4.
AB - The kinetics of ammonia oxidation with oxygen have been investigated in the 10-5 and 10-4 mbar range on Pt(5 3 3) and Pt(4 4 3). Only N2 and NO but no N2O were detected as reaction products. The dependence of product formation on temperature and on the partial pressures of the reactants has been studied under steady state conditions. The reactive sticking coefficients were determined under reaction conditions with s reac of ammonia reaching nearly 0.2. The Pt(5 3 3) surface was found to be catalytically more active than Pt(4 4 3) by a factor of 2-4.
KW - Ammonia oxidation
KW - Kinetics
KW - Platinum
KW - Stepped platinum surface
UR - http://www.scopus.com/inward/record.url?scp=13644260930&partnerID=8YFLogxK
U2 - 10.1016/j.susc.2004.12.027
DO - 10.1016/j.susc.2004.12.027
M3 - Article
AN - SCOPUS:13644260930
VL - 577
SP - 1
EP - 14
JO - Surface science
JF - Surface science
SN - 0039-6028
IS - 1
ER -