Numerical Partitioning Model for the Koutecký-Levich Analysis of Electrochemical Flow Cells with a Combined Channel/Wall-Jet Geometry

We present numerical studies of the flow profile and electrode currents for the hydrogen oxidation and oxygen reduction reactions in an electrochemical flow cell. Koutecký-Levich type equations are obtained by partitioning the electrode surface into flow profile regimes and their correlation to idea...

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Published in:Journal of the Electrochemical Society 2017-01, Vol.164 (11), p.E3448-E3456
Main Authors: Tschupp, S. A., Temmel, S. E., Salguero, N. Poyatos, Herranz, J., Schmidt, T. J.
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Language:English
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description We present numerical studies of the flow profile and electrode currents for the hydrogen oxidation and oxygen reduction reactions in an electrochemical flow cell. Koutecký-Levich type equations are obtained by partitioning the electrode surface into flow profile regimes and their correlation to idealized wall-jet and channel electrode geometries. The precision of several Koutecký-Levich type equations is evaluated and it is shown that differences between the most commonly applied equations are negligible within the range of flow rates studied and are surpassed by experimental errors.
doi_str_mv 10.1149/2.0441711jes
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title Numerical Partitioning Model for the Koutecký-Levich Analysis of Electrochemical Flow Cells with a Combined Channel/Wall-Jet Geometry
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