Abstract
In this work, we study a surface reaction on Pd(111) crystals under ultra-high-vacuum conditions that can be modeled by two coupled reaction-diffusion equations. In the bistable regime, the reaction exhibits travelling fronts that can be observed experimentally using photo electron emission microscopy. The spatial profile of the fronts reveals a coverage-dependent diffusivity for one of the species. We propose a method to solve the nonlinear eigenvalue problem and compute the direction and the speed of the fronts based on a geometrical construction in phase-space. This method successfully captures the dependence of the speed on control parameters and diffusivities.
Translated title of the contribution | Frentes móviles de la oxidación del CO en Pd (111) con difusión dependiente de la cobertura |
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Original language | English |
Article number | 164106 |
Journal | Journal of Chemical Physics |
Volume | 141 |
Issue number | 16 |
DOIs | |
State | Published - 28 Oct 2014 |
Bibliographical note
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