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Overpotential is the current-producing potential difference between a nonequilibrium electrode potential and its corresponding equilibrium value for an electrode reaction. This article provides information on overpotential of an electrode reaction. It contains a table that lists overpotential values based on the electrode reaction.

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Overpotential, Corrosion: Materials, Vol 13B, ASM Handbook, Edited By Stephen D. Cramer, Bernard S. Covino, Jr., ASM International, 2005, p 663–664,

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