Issue 18, 2003

Propagation of chemical waves across inexcitable gaps

Abstract

The propagation of chemical reaction–diffusion waves across a sequence of gaps is studied experimentally using catalyst-printed membranes. We find that a wave fails to propagate across the entire reaction domain if the width W of a gap is greater than a critical value Wcr or if the spacing S between two successive gaps is less than a critical value Scr. For values of W ≪ Wcr and S ≫ Scr then successful propagation across the entire domain is highly probable, irrespective of the number of gaps. For values of W and S close to the critical values, the probability of failure increases with increasing number of gaps.

Article information

Article type
Paper
Submitted
27 May 2003
Accepted
08 Jul 2003
First published
06 Aug 2003

Phys. Chem. Chem. Phys., 2003,5, 3928-3932

Propagation of chemical waves across inexcitable gaps

A. F. Taylor, G. R. Armstrong, N. Goodchild and S. K. Scott, Phys. Chem. Chem. Phys., 2003, 5, 3928 DOI: 10.1039/B305863H

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