Studying the mechanism of electrochemical reactions benefits from implementation of steady state and transient techniques such as electrochemical impedance spectroscopy (EIS). To develop an understanding of experimental results and how they relate to corrosion mechanisms requires their comparison with a mechanistic model. In this study, a physico-chemical model was used to simulate both the steady state potentiodynamic sweep, and the EIS response of cathodic reduction of H+ in an acidic environment. The modeled steady state potentiodynamic sweep, Nyquist plot and Bode plot were validated by comparison with experimental data.

Subject
Double layer, Modeling, Diffusion, Sodium chloride, Impedance, Nyquist plots, Capacitance, Constants, Current densities, Risk reduction, Polarization resistance, Electrochemical potential, Step potential
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2022
Association for Materials Protection and Performance (AMPP)
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