Abstract
A technique is presented for obtaining the effective conductivity of the liquid phase in a porous electrode from the polarization response of the electrode, in the presence of a dissolved redox couple whose electrode reaction rate is controlled by convective mass transfer. An analytical solution of the polarization response shows that, for small values of the polarization parameter , a potential range exists where the square of electrode current density is linear in applied potential, with a slope that is proportional to the effective conductivity. Limits of applicability of the analytical solution and other experimental considerations are discussed.
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