Hartmann, Nils; Kevrekidis, Yannis; Imbihl, Ronald:
Pattern formation in restricted geometries: The NO+CO reaction on Pt(100).
2000
In: Journal of Chemical Physics (J.Chem.Phys.), Jg. 112 (2000), Heft 15, S. 6795 - 6803
Artikel/Aufsatz in Zeitschrift / Fach: Chemie
Titel:
Pattern formation in restricted geometries: The NO+CO reaction on Pt(100).
Autor(in):
Hartmann, Nils im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Kevrekidis, Yannis; Imbihl, Ronald
Erscheinungsjahr
2000
Erschienen in:
Journal of Chemical Physics (J.Chem.Phys.), Jg. 112 (2000), Heft 15, S. 6795 - 6803
ISSN

Abstract:

Employing photoelectron emission microscopy (PEEM) as the spatially resolving technique, pattern formation during the catalytic redn. of NO with CO has been investigated on a microstructured Pt(100)/Ti/TiO2 surface in the 10-6 and 10-5 mbar range. The microstructured surface-initially created by a lithog. technique-shows restricted Pt(100) domains of varying size and geometry, such as circles, rings, and dumbbells, surrounded by an inert Ti/TiO2 layer. It is shown that pattern formation during the NO+CO reaction, i.e., the propagation of pulses on the Pt(100) surface, is significantly affected by the size and the geometry of these domains.