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January 1, 1957Journal of The Electrochemical SocietyOpen Access

Electrochemical Polarization

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Authors

MSMilton R. SternBoston CollegeAGA. L. GeabyUnion Carbide (United States)

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Overview

Kinetic analysis reveals causes of Tafel deviations in noncorroding electrodes, highlighting hazards in arbitrary linear curve fitting.

Key Points

  • To determine the kinetic mechanisms driving deviations from Tafel behavior across varying overvoltage ranges in noncorroding electrodes.
  • Kinetic modeling of oxidation-reduction reactions across low and high overpotential regions.
  • Theoretical evaluation of current-potential relationships and common empirical curve-fitting practices.
  • Deviations from Tafel behavior at low overvoltage values are driven primarily by reverse reactions within the oxidation-reduction system.
  • Deviations at high overvoltages result from concentration polarization, resistance polarization, or a combination of both.
  • Empirical linear fitting across limited data points and the arbitrary introduction of slope breaks directly contradict established electrode kinetics.

Cite This Study

Stern et al. (1957) studied this question.

synapsesocial.com/papers/69d76db5db9d5e1bf4b8a6d2https://doi.org/10.1149/1.2428496
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