Analysis of inductive current pulse dynamics in water electrolysis cell

water-electrolysis-cell-experimentAnalysis of inductive current pulse dynamics in water electrolyses cell

Authors: Martins Vanags, Janis Kleperis, Gunars Bajars, Andrejs Lusis


We used inductive discharge voltage pulses to power the electrolysis cell with water and very weak water solutions as electrolyte. Results showed that individual voltage pulse characterize by rapidly growing first front that stays unchanged by changing the concentration of electrolyte. The current pulse changes direction from negative to positive direction with increasing concentration of electrolyte. Explanation is proposed that during appearing the high voltage pulse to interface cathode metal/electrolyte, the electrons are emitted in electrolyte and immediately solvated in the shell formed from six water molecules. Three discharge mechanisms of electrons in solvated shells (discharge with hydroxonium, reaction with neutral water molecule to split it and diffusion back into the metal) can explain the change of polarity of current pulse.

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