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DOI: 10.1039/A904994K (Paper) Reference Section for: Phys. Chem. Chem. Phys., 1999, 1, 4595-4599

Analysis of reaction–diffusion waves in the ferroin-catalysed Belousov–Zhabotinsky reaction

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Annette F. Taylor, Vilmos Gáspár, Barry R. Johnson and Stephen K. Scott

Abstract

The Oregonator model is used to analyse reaction–diffusion waves in the ferroin-catalysed Belousov–Zhabotinsky reaction. The value of the effective rate constant of ferriin reduction kJ is determined from experimental wave profiles of the oxidised catalyst obtained from solutions open to air, nitrogen or sealed with a perspex lid. The value of kJ is found to be lower in systems affected by O2. The dependence of the wave speed c on the concentration of ferriin in the wave profiles is analysed. An alternative method for the determination of kJ from a relationship between the period of target initiation T and [Fe(III)] is presented. The effect of these results on the ‘universal dispersion relation’ is also discussed.

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