Abstract
During the electrodialysis of ammonium nitrate solution, the fluxes of salt ions pass through the maximum, which is observed near the limiting current, with increasing current density. A decrease in the flux of ammonium ions at the overlimiting current densities is caused by the effect of competitive transport of solution ions and by the formation of weak NH3 ∙ H2O electrolyte due to the alkalization of solution layer adjacent to the cation-exchange membrane in the desalination channel. A decrease in the flux of nitrate ions in the overlimiting current modes is caused by a change in the composition and catalytic activity of the functional groups of anion-exchange membrane towards the dissociation of water molecules due to the effect of ammonium ions.
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Original Russian Text © O.A. Kozaderova, S.I. Niftaliev, K.B. Kim, 2018, published in Elektrokhimiya, 2018, Vol. 54, No. 4, pp. 416–422.
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Kozaderova, O.A., Niftaliev, S.I. & Kim, K.B. Ionic Transport in Electrodialysis of Ammonium Nitrate. Russ J Electrochem 54, 363–367 (2018). https://doi.org/10.1134/S1023193518040043
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DOI: https://doi.org/10.1134/S1023193518040043