Cathodic reduction of vanadium in NaCl-KCl-VCl3 melts

3 Cathodic reduction of vanadium in NaCl-KCl-VCl3 melts 

Further increase of the potential sweep rate leads to a change in the limiting step of the electrode reaction. The transition from the diffusion to the kinetics regime is confirmed by an increase of the anodic peak potential and a reduction of the cathodic peak maximum potential in the voltammograms. 

Using vanadium(III) diffusion coefficients determined earUer we calculated the number of electrons participating in the recharge process and obtained values close to one. This result supports the one-electron nature of the first stage of V(III) ion electroreduction in NaCl-KCl-VC melts. 

We attempted to calculate the number of electrons involved in the electrode reaction on the basis of cyclic voltammetry measurements to confirm the two-electron nature of vanadium(II) reduction. In the case of reversible metal deposition Equation 4.5.13 is fulfilled [23]  

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