Abstract
The method of impedance spectroscopy was used to study the effect of the electrode geometry and size on the appearance of spontaneous oscillations in the model electrochemical system of the N-NDR type, when the region of negative differential resistance is observed in the steady-state polarization curve. It is shown that in the case of the spherical and cylindrical electrodes, the potential region in which Hopf instability is observed becomes more narrow at a decrease in the electrode radius. However, this region will be wider in the latter case.
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Original Russian Text © V.V. Pototskaya, O.I. Gichan, A.A. Omel’chuk, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 5, pp. 525–531.
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Pototskaya, V.V., Gichan, O.I. & Omel’chuk, A.A. Electrode geometry and Hopf instability. Russ J Electrochem 46, 494–500 (2010). https://doi.org/10.1134/S1023193510050022
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DOI: https://doi.org/10.1134/S1023193510050022