Spatiotemporal dynamics of minimal bromate oscilla- tors in open one-side-fed reactor

Molnár, István and Kurin Csörgei, Krisztina and Szalai, István (2018) Spatiotemporal dynamics of minimal bromate oscilla- tors in open one-side-fed reactor. PHYSICAL CHEMISTRY CHEMICAL PHYSICS. pp. 1-7. ISSN 1463-9076

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Abstract

Minimal bromate oscillators represent the simplest version of the oscillatory reactions based on the chemistry of oxybromine species. Here, we present numerical and experimental evidences of the existence of reaction-diffusion waves in the ferroin catalyzed minimal bromate oscillator. The wave dynamics depends not only on the characteristic chemical time scales but also on that of the diffusive matter exchange which occurs between the reaction-diffusion medium and its environment. We show that the extended reactivity of ferroin catalyst towards the oxybromine species plays an essential role in the observed phenomena. In the cerium catalyzed minimal bromate oscillator the simulations support only the formation of spatial bistability.

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