Excitable dynamics in the bromate–sulfite–ferrocyanide reaction

Literature Information

Publication Date 2002-03-14
DOI 10.1039/B110048C
Impact Factor 3.676
Authors

J. Zagora, M. Voslař, L. Schreiberová, I. Schreiber


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Abstract

Using the bromate–sulfite–ferrocyanide (BSF) reaction in a continuously stirred tank reactor (CSTR) we study the relations between excitability, oscillations and bistability. Two kinds of excitability associated with either direct or indirect initiation of the autocatalytic production of the H+ ions are found by using pulsed addition of H+ or OH+ ions, respectively. Threshold dynamics in both cases are examined. Experimental findings are compared with calculations based on a mechanism of successive reduction of bromate by protonated forms of sulfite. The model reproduces most of the dynamics in the CSTR including both modes of excitable behaviour.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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