Metal ion transfer in a single elementary step

In the transfer equilibrium of metaUic ions oy. equals oy and in the nonequilibrium state oyj deviates from oy to a certain level given by Eqn. 9-2  

Expressing the anodic and the cathodic activation energies in the standard state as 4 4. o) respectively, and the standard equilibrium potential 

Using Eqn. 9-4 for the activation energy, we obtain the anodic transfer current, r, of metallic ions as given by Eqn. 9-6  

Similarly, the cathodic transfer current of metallic ions, i , is given by Eqn. 9-7  

In transfer equilibrium (t) = 0), the anodic current equals the cathodic cmrent, and the exchange current, io, can be defined by Eqn. 9-8  

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