Статья
2018

Ionic Transport in Electrodialysis of Ammonium Nitrate


O. A. Kozaderova O. A. Kozaderova , S. I. Niftaliev S. I. Niftaliev , K. B. Kim K. B. Kim
Российский электрохимический журнал
https://doi.org/10.1134/S1023193518040043
Abstract / Full Text

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.

Author information
  • Voronezh State University of Engineering Technologies, pr. Revolyutsii 19, Voronezh, 394036, Russia

    O. A. Kozaderova, S. I. Niftaliev & K. B. Kim

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