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

Nils Hartmann, Yannis Kevrekidis, Ronald Imbihl

Research output: Contribution to journalArticlepeer-review

25 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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