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.
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Financial support by Grant Agency of the Czech Republic under project number 106/04/1279 and by the Ministry of Education, Youth and Sports under project number MSM6046137301 is gratefully acknowledged.
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Mácová, Z., Bouzek, K. Electrocatalytic activity of copper alloys for \(\hbox{NO}_{3}^{-}\) reduction in a weakly alkaline solution Part 1: Copper–zinc. J Appl Electrochem 35, 1203–1211 (2005). https://doi.org/10.1007/s10800-005-9028-4
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DOI: https://doi.org/10.1007/s10800-005-9028-4