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

Nils Hartmann; Yannis Kevrekidis; Ronald Imbihl

doi:10.1063/1.481254

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

Nils Hartmann, Yannis Kevrekidis, Ronald Imbihl

Chemical & Biological Engineering

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27 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 language	English (US)
Pages (from-to)	6795-6803
Number of pages	9
Journal	Journal of Chemical Physics
Volume	112
Issue number	15
DOIs	https://doi.org/10.1063/1.481254
State	Published - Apr 15 2000

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.481254

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

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.",

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T2 - The NO+CO reaction on Pt(100)

AU - Hartmann, Nils

AU - Kevrekidis, Yannis

AU - Imbihl, Ronald

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Y1 - 2000/4/15

N2 - 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.

AB - 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.

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

Abstract

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