Revival Oscillations in a Closed Bromate-1,4-Cyclohexanedione-Acid System with Ferroin

An unusual phenomenon of revival waves and oscillations is studied in a closed bromate-1,4-cyclohexanedione reaction system containing ferroin catalyst. Experiments with varying initial 1,4-cyclohexanedione and bromate concentrations show that revival oscillations spontaneously emerge at a narrow area of the reaction conditions. Numerical calculations of a kinetic model consisting of 22 reactions and 15 species are employed to gain understanding of the underlying mechanism contributing to such an exotic dynamics. The simulations are able to reproduce the qualitative, but not yet quantitative properties of the experimentally observed revival oscillations.

Automated summary

Revival waves and oscillations were observed in a closed bromate-1,4-cyclohexanedione reaction system containing ferroin catalyst. Experiments revealed that these oscillations spontaneously emerged under specific reaction conditions, with numerical calculations providing insight into the underlying mechanism. The simulations were able to reproduce the qualitative, but not yet quantitative properties of the experimentally observed revival oscillations.