On the impedance response of reactions influenced by mass transfer

Résumé : A direct relationship is derived between the charge-transfer resistance and the resistive terms ascribable to diffusion for a faradaic reaction influenced by transport of the reacting species to the electrode. The charge-transfer resistance is shown to approach a finite value for potentials at which the current is limited by mass transfer and, conversely, the diffusion impedance approaches a finite value when the current is controlled by kinetics. Supporting experimental results are presented for both an irreversible (oxygen reduction reaction) and a quasi-reversible (ferrocyanide oxidation) electrochemical systems investigated with a rotating- disk electrode.
Type de document :
Article dans une revue
Elektrokhimiya / Russian Journal of Electrochemistry, MAIK Nauka/Interperiodica, 2017, 53 (9), pp.932-940. 〈10.1134/S1023193517090142〉
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Dernière modification le : mercredi 21 mars 2018 - 18:57:54
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Mai Tran Tron Long, Bernard Tribollet, Vincent Vivier, Mark E. Orazem. On the impedance response of reactions influenced by mass transfer. Elektrokhimiya / Russian Journal of Electrochemistry, MAIK Nauka/Interperiodica, 2017, 53 (9), pp.932-940. 〈10.1134/S1023193517090142〉. 〈hal-01609080〉

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