Pattern formation in restricted geometries: The NO+CO reaction on Pt(100)

Nils Hartmann, Yannis Kevrekidis, Ronald Imbihl

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Employing photoelectron emission microscopy (PEEM) as the spatially resolving technique, pattern formation during the catalytic reduction of NO with CO has been investigated on a microstructured Pt(100)/Ti/TiO2 surface in the 10-6 and 10-5mbar range. The microstructured surface - initially created by a lithographic 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.

Original languageEnglish (US)
Pages (from-to)6795-6803
Number of pages9
JournalJournal of Chemical Physics
Volume112
Issue number15
DOIs
StatePublished - Apr 15 2000

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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