On Discrete Thermodynamics of Electrochemical Systems and Electrochemical Oscillations

Details On Discrete Thermodynamics of Electrochemical Systems and Electrochemical Oscillations On Discrete Thermodynamics of Electrochemical Systems and Electrochemical Oscillations

2009-07-25

arxiv.org/abs/0907.4382v1

Physics

Chemical Physics

8 pages, 10 figures

Scientific paper

The article presents results of discrete thermodynamics (DTD) basic application to electrochemical systems. Consistent treatment of the electrochemical system as comprising two interacting subsystems - the chemical and the electrical (electrochemical) - leads to ln-logistic map of states of the electrochemical system with non-unity coefficient of the electrical charge transfer. This factor provides for a feedback and causes dynamic behavior of electrochemical systems, including bifurcations and electrochemical oscillations. The latter occur beyond bifurcation point at essential deviation of the chemical subsystem from true thermodynamic equilibrium. If the charge transfer coefficient takes on unity, the map turns into classical equation of electrochemical equilibrium. Spectra of electrochemical oscillations, resulted from the DTD formalism, are multifractals. Graphical solutions of this work are qualitatively compared to some experimental results.

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