Hydrogen permeation based potentiometry is a recently developed experimental technique to measure electrochemical oxygen reduction reaction (ORR) rates at in-accessible polymer/metal interfaces relevant for corrosion driven coating delamination. In this talk, the results from combining electrochemical impedance spectroscopy with this technique to correlate interfacial charge transfer resistance during polymer degradation with corresponding current-potential i.e; I(U) curve for ORR kinetics will be shown.
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