Investigation of Birhythmicity in the Nonlinear Differential Equations Arising from Electrodissolution of Metals, as New Phenomenon in Electrochemical Oscillations

Spontaneous Oscillations of electric current or potential are an extensive phenomenon in electrochemistry. More recent studies have emphasized the nonlinear dynamical nature of electrochemical oscillations and were mainly set apart for classifying different kinds of oscillatory states such as periodic, multiperiodic, quasiperiodic, aperiodic (chaotic), multistability and bifurcations [1].These temporal behavior could be obtained from experimental data orsolving of differential equations established upon mathematical modeling of electrochemical systems. One of the electrochemical model which its dynamic is in good agreement with the experiment is a three-variable model which has been developed by Koper and Gaspard [2] explaining the interchange of electrochemical species inward-toward of specific geometry of electrode such as rotating disk electrode (RDE) and appropriate flow of solution.