Abstract.
In this work we investigate the influence of the adsorption of ions on the impedance spectroscopy of an electrolytic cell. We consider that the positive and negative ions present in a dielectric liquid are adsorbed in the electrode surfaces with different adsorption energies. This difference in adsorption energies causes an additional plateaux in the limit of the low-frequency range of the real part of the impedance Z . In the same frequency range, a second minimum in the imaginary part of Z is predicted. The theory is illustrated with measurements of the impedance of an electrolytic solution in the frequency range from 10-2Hz to 1KHz. A comparison between the present model and others from the literature to describe the experimental results is also made.
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An erratum to this article can be found at http://dx.doi.org/10.1140/epje/i2011-11021-0.
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Batalioto, F., Martins, O.G., Duarte, A.R. et al. The influence of adsorption phenomena on the impedance spectroscopy of an electrolytic cell. Eur. Phys. J. E 34, 10 (2011). https://doi.org/10.1140/epje/i2011-11010-3
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DOI: https://doi.org/10.1140/epje/i2011-11010-3