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Redox Reaction (EE) at a Rotating Disk Electrode (RDE)

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This Demonstration plots the current density versus the potential for a redox EE reaction ( under steady-state conditions at a rotating disk electrode. Simulated concentration profiles are shown, along with linearized (piecewise linear) concentration profiles of electroactive species according to Levich theory. IUPAC conventions are used.

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Contributed by: Jean-Paul Diard and Claude Montella (March 2011)
Open content licensed under CC BY-NC-SA

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The expression for the Faradaic current density in solution, in the absence of a chemical reaction, is given for the redox EE reaction by:

, , , , .

References

[1] V. G. Levich, Physicochemical Hydrodynamics, 2nd ed., Englewood Cliffs, NJ: Prentice-Hall, Inc., 1962.

[2] A. J. Bard and L. R. Faulkner, Electrochemical Methods, New York: John Wiley and Sons, 2001.

[3] J.-P. Diard, C. Montella, and B. Le Gorrec, Cinétique Electrochimique, Paris: Hermann, 1996.

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