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Comparison of local electrochemical impedance measurements derived frombi-electrode and microcapillary techniques

Jorcin, Jean-Baptiste and Krawiec, Halina and Pébère, Nadine and Vignal, Vincent Comparison of local electrochemical impedance measurements derived frombi-electrode and microcapillary techniques. (2009) Electrochimica Acta, vol. 54 (n° 24). 5775 -5781. ISSN 0013-4686

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Official URL: http://dx.doi.org/10.1016/j.electacta.2009.05.029

Abstract

In the present paper, local electrochemical impedance spectrawere obtained on a 316L stainless steel from two configurations: a dual microelectrode (bi-electrode) and microcapillaries. With the bi-electrode, the local impedance measurements were made from the ratio of the applied voltage to the local current density calculated from the application of the ohm’s law. With the use of microelectrochemical cells, the specimen surface area in contact with the electrolyte is limited by the use of glass microcapillaries and the local impedance was defined fromthe ratio of the local potential to the local current restricted to the analysed surface area. Differences and similarities observed in local impedance spectra obtained with the two configurations were described

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Electrochimica Acta website : http://www.sciencedirect.com/science/journal/00134686
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
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Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université de Bourgogne - UB (FRANCE)
Laboratory name:
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Deposited By: Nihad Lahdifi

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