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The outward diffusion equation of the instantaneously released ion in pores of a porous layer was derived theoretically, and then applied for the study of oxygen ion diffusion in porous Fe which was generated by fast electrochemical reduction of solid Fe 2 O 3 in molten CaCl 2 . The solid cathode was constructed by filling mixed Fe/Fe 2 O 3 powders (8:1 in mass...
Two simplified methods are proposed for determining the internal ionic resistance of a porous electrode using linear voltammetry in the double layer region. With the 70% current response time t 0.7 on linear voltammogram and the independently measured uncompensated solution resistance R e , the internal ionic resistance of a porous electrode can be calculated using the equation...
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