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

L. Qiao; I. G. Kevrekidis; C. Punckt; H. H. Rotermund

doi:10.1103/PhysRevE.73.036217

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

L. Qiao, I. G. Kevrekidis, C. Punckt, H. H. Rotermund

Chemical & Biological Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

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 we trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.

Original language	English (US)
Article number	036217
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	73
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.73.036217
State	Published - 2006

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Statistical and Nonlinear Physics
Statistics and Probability

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10.1103/PhysRevE.73.036217

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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 we trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.",

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AB - 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 we trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.

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JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

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

Abstract

All Science Journal Classification (ASJC) codes

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