Ionic currents exceeding the diffusion limitation in planar nano-cavities

M. Soestbergen, van

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Theory predicts that ionic currents through electrochemical cells at nanometer scale can exceed the diffusion limitation due to an expansion of the interfacial electrostatic double layer. Corresponding voltammetry experiments revealed a clear absence of a plateau for the current, which cannot be described by the classical Butler–Volmer approach using realistic values for the transfer coefficient. We show that extending the classical approach by considering the double layer structure using the Frumkin correction leads to an accurate description of the anomalous experimental data.
Original languageEnglish
Pages (from-to)105-108
JournalElectrochemistry Communications
Volume20
DOIs
Publication statusPublished - 2012

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