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Geometry-induced pulse instability in microdesigned catalysts: the effect of boundary curvature

L. Qiao·I. G. Kevrekidis·C. Punckt·H. H. Rotermund
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Abstract

We explore the effect of boundary curvature on the instability of reactive pulses in the catalytic oxidation of CO on microdesigned Pt catalysts. Using ring-shaped domains of various radii, we find that the pulses disappear (decollate from the inert boundary) at a turning point bifurcation, and trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.

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L. Qiao, I. G. Kevrekidis, C. Punckt, H. H. Rotermund. 2005-11-28. Geometry-induced pulse instability in microdesigned catalysts: the effect of boundary curvature. https://doi.org/10.1103/physreve.73.036217

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