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The Apparent Constant-Phase-Element Behavior of an Ideally Polarized Blocking Electrode

Huang, Vicky Mei-Wen and Vivier, Vincent and Orazem, Mark E. and Pébère, Nadine and Tribollet, Bernard The Apparent Constant-Phase-Element Behavior of an Ideally Polarized Blocking Electrode. (2007) Journal of The Electrochemical Society (JES), 154 (2). C81-C88. ISSN 0013-4651

(Document in English)

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Official URL: http://dx.doi.org/10.1149/1.2398882


Two numerical methods were used to calculate the influence of geometry-induced current and potential distributions on the impedance response of an ideally polarized disk electrode. A coherent notation is proposed for local and global impedance which accounts for global, local, local interfacial, and both global and local ohmic impedances. The local and ohmic impedances are shown to provide insight into the frequency dispersion associated with the geometry of disk electrodes. The high-frequency global impedance response has the appearance of a constant-phase element CPE but can be considered to be only an apparent CPE because the CPE exponent is a function of frequency.

Item Type:Article
Additional Information:Thanks to Electrochemical Society editor. The definitive version is available at http://scitation.aip.org The original PDF of the article can be found at Journal of The Electrochemical Society website : http://www.ecsdl.org/JES/
HAL Id:hal-00806026
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > University of Florida (USA)
Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Laboratory name:
Deposited On:04 May 2009 07:41

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