Tafel analysis mass transport correction

5 Tafel Analysis Mass Transport Correction Problem 

Using the Nernst diffusion layer model, derive an equation which describes how the flux (/a) varies with overpotential for a one-electron reduction. 

Assuming that the electron transfer is fully electrochemically reversible and that the diffusion layer thickness is constant at all potentials, what would the gradient be for a plot of ln[ - 1] vs B  

The flux of A across the Nernst layer maybe described by 

We will assume the diffusion coefficients for species A and B to be equal. The law of conservation of mass then requires that 

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Survila, A. and Stasiukaitis, P.V. (1997) Partial currents of consecutive charge transfer in the processes of metal electrodeposition. Chemija, 3, 31-35. Streeter, I. and Compton, R.G. (2007) Mass transport corrected Tafel analysis of voltammetric waves when can it be applied Electrochim. Acta, 52 (13), 4305 -4311. 

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