Abstract
The effect of well-defined palladium boundaries on the formation of reaction-diffusion patterns during the oxidation of CO on Pt(1 1 0) has been investigated. The Pd boundaries were created by microlithography technique. Reaction-diffusion patterns formed on this surface were observed by photoemission electron microscopy (PEEM). On a multilayer Pd-covered Pt( 1 1 0) surface, depending on the partial pressures, Pd areas may act as a reservoir of CO for adjacent Pt regions. Therefore, patterns forming on the bare Pt areas exhibit a pronounced interaction with the artificial Pt/Pd boundaries.
Original language | English (US) |
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Pages (from-to) | 493-501 |
Number of pages | 9 |
Journal | Physica D: Nonlinear Phenomena |
Volume | 123 |
Issue number | 1-4 |
DOIs | |
State | Published - 1998 |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Mathematical Physics
- Condensed Matter Physics
- Applied Mathematics
Keywords
- CO oxidation
- Composite catalyst
- Pattern formation
- Photoemission electron microscope
- Pt( 1 1 0)