Abstract
A comparative study of the influence of an addition of Zn to Cu as the basic cathode material on electrocatalytic activity for \(\hbox{NO}_{3}^{-}\) reduction was performed. Potentiodynamic measurements using a rotating ring-disk electrode were carried out in an artificial solution simulating solution after regeneration of the ion-exchange column for \(\hbox{NO}_{3}^{-}\) removal in drinking water treatment. The results were verified by batch electrolysis experiments. An enhancement of the electrocatalytic activity was observed. Unfortunately, NH3 was found to be the main \(\hbox{NO}_{3}^{-}\) reduction product. The highest electrocatalytic activity was obtained using an electrode containing 41 wt.% Zn.
Published Version
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