Prediction of the Current Density at an Electrode at Which Multiple Electrode Reactions Occur under Potentiostatic Control

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Journal of The Electrochemical Society, ISSN: 0013-4651, Vol: 130, Issue: 5, Page: 1123-1126

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White, Ralph E; Lorimer, S. E; Darby, R.
The Electrochemical Society
Materials Science; Energy; Chemistry; electrochemical electrodes; electrochemistry; current density; voltage control; Chemical Engineering
article description
It is often desirable to be able to predict the total current density at an electrode when multiple electrochemical reactions occur there under potentiostatic control. It is also sometimes desirable to include the effect of ionic migration within the diffusion layer upon the predicted total (1) and partial current densities (2). A procedure for doing this can be illustrated by considering the rotating disk electrode (RDE) system and the associated potential distribution near the RDE as shown in Fig. 1 and 2.