Planar traveling waves in the oscillatory oxidation of CO over polycrystalline catalysts

Abstract

We have used the oxide model proposed by Sales, Turner, and Maple to calculate spatial patterns in the oscillatory oxidation of CO over polycrystalline Pt, Pd, and Ir catalysts. Specifically, by introducing CO diffusion, we have studied the dispersion of one-dimensional traveling waves and their linear stability. These results could be tested by experiments which resolve the spatial structure of the catalytic oscillations.