Simulation of the life cycle of adsorbate islands on the Pt(1 0 0) surface during the NO + NH3 reaction

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autorschaft

  • Matías Rafti
  • José Luis Vicente
  • Hannes Uecker
  • Ronald Imbihl

Organisationseinheiten

Externe Organisationen

  • Universidad Nacional de La Plata
  • Karlsruher Institut für Technologie (KIT)
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Details

OriginalspracheEnglisch
Seiten (von - bis)577-583
Seitenumfang7
FachzeitschriftChemical physics letters
Jahrgang421
Ausgabenummer4-6
Frühes Online-Datum7 März 2006
PublikationsstatusVeröffentlicht - 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 Sachgebiete

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Simulation of the life cycle of adsorbate islands on the Pt(1 0 0) surface during the NO + NH3 reaction. / Rafti, Matías; Vicente, José Luis; Uecker, Hannes et al.
in: Chemical physics letters, Jahrgang 421, Nr. 4-6, 15.04.2006, S. 577-583.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Rafti M, Vicente JL, Uecker H, Imbihl R. Simulation of the life cycle of adsorbate islands on the Pt(1 0 0) surface during the NO + NH3 reaction. Chemical physics letters. 2006 Apr 15;421(4-6):577-583. Epub 2006 Mär 7. doi: 10.1016/j.cplett.2006.02.004
Rafti, Matías ; Vicente, José Luis ; Uecker, Hannes et al. / Simulation of the life cycle of adsorbate islands on the Pt(1 0 0) surface during the NO + NH3 reaction. in: Chemical physics letters. 2006 ; Jahrgang 421, Nr. 4-6. S. 577-583.
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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.",
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AU - Rafti, Matías

AU - Vicente, José Luis

AU - Uecker, Hannes

AU - Imbihl, Ronald

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