Details
| Original language | English |
|---|---|
| Pages (from-to) | 577-583 |
| Number of pages | 7 |
| Journal | Chemical physics letters |
| Volume | 421 |
| Issue number | 4-6 |
| Early online date | 7 Mar 2006 |
| Publication status | Published - 15 Apr 2006 |
Abstract
Photoemission electron microscopy (PEEM) of the NO + NH3 reaction on a Pt(1 0 0) single crystal surface under UHV conditions reveals complicated dynamical behavior. As a rationalization for the observed spatio-temporal evolution of the surface a so-called 'island growth mechanism' was proposed. Here, we present the results of 1D simulations with a realistic 7-variable model that takes explicitly into account macroscopic surface defects on the catalyst. Depending on whether or not we consider site-blocking effects of coadsorbates on diffusing species, we obtain different patterns. The experimental PEEM data can be qualitatively reproduced in this way.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Chemical physics letters, Vol. 421, No. 4-6, 15.04.2006, p. 577-583.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Simulation of the life cycle of adsorbate islands on the Pt(1 0 0) surface during the NO + NH3 reaction
AU - Rafti, Matías
AU - Vicente, José Luis
AU - Uecker, Hannes
AU - Imbihl, Ronald
N1 - Funding Information: M.R. and J.L.V. acknowledges support of UNLP (Universidad Nacional de La Plata), CICPBA (Comisión de Investigaciones Científicas de la Prov. de Buenos Aires), and CONICET (Consejo de Investigaciones Científicas y Tecnológicas). M.R. gratefully acknowledges finantial support of the DAAD (Deutscher Akademischer Austauch Dienst).
PY - 2006/4/15
Y1 - 2006/4/15
N2 - Photoemission electron microscopy (PEEM) of the NO + NH3 reaction on a Pt(1 0 0) single crystal surface under UHV conditions reveals complicated dynamical behavior. As a rationalization for the observed spatio-temporal evolution of the surface a so-called 'island growth mechanism' was proposed. Here, we present the results of 1D simulations with a realistic 7-variable model that takes explicitly into account macroscopic surface defects on the catalyst. Depending on whether or not we consider site-blocking effects of coadsorbates on diffusing species, we obtain different patterns. The experimental PEEM data can be qualitatively reproduced in this way.
AB - Photoemission electron microscopy (PEEM) of the NO + NH3 reaction on a Pt(1 0 0) single crystal surface under UHV conditions reveals complicated dynamical behavior. As a rationalization for the observed spatio-temporal evolution of the surface a so-called 'island growth mechanism' was proposed. Here, we present the results of 1D simulations with a realistic 7-variable model that takes explicitly into account macroscopic surface defects on the catalyst. Depending on whether or not we consider site-blocking effects of coadsorbates on diffusing species, we obtain different patterns. The experimental PEEM data can be qualitatively reproduced in this way.
UR - http://www.scopus.com/inward/record.url?scp=33645278633&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2006.02.004
DO - 10.1016/j.cplett.2006.02.004
M3 - Article
AN - SCOPUS:33645278633
VL - 421
SP - 577
EP - 583
JO - Chemical physics letters
JF - Chemical physics letters
SN - 0009-2614
IS - 4-6
ER -