Abstract
Standard rate constants of charge transfer (k s) on platinum and glassy carbon electrodes for Nb(V)/Nb(IV) redox pair in the NaCl-KCl-K2NbF7 melt are determined using the method of cyclic voltammetry in the temperature range of 973 to 1123 K. It is found that k s increases with increasing temperature and when we pass from glassy carbon to platinum electrode. The “apparent” activation energies of charge transfer are determined; it is shown that the charge transfer between the Nb(V) and Nb(IV) complexes is quasi-reversible and is controlled predominantly by the diffusion.
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Original Russian Text © A.V. Popova, S.A. Kuznetsov, 2008, published in Elektrokhimiya, 2008, Vol. 44, No. 8, pp. 992–997.
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Popova, A.V., Kuznetsov, S.A. Standard rate constants of charge transfer of Nb(V)/Nb(IV) redox pair in equimolar NaCl-KCl melt. Russ J Electrochem 44, 921–925 (2008). https://doi.org/10.1134/S1023193508080065
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DOI: https://doi.org/10.1134/S1023193508080065