Abstract

The non-stationary phenomena in weakly-conducting liquids, immersed in the electric field, are studied. The system of equations is proposed, which simulate the weakly-conducting liquid by a three-component medium consisting of a non-charged liquid and both positive and negative ions. The model takes into account the volume and surface electrochemical reactions, the concentration diffusion of ions and their drift in the electric field. The main objective of simulation consists in: • - explaining the available experimental data on the non-stationary passage of electric current, peculiarities of current-voltage characteristics and the formation of near-electrode structures of a volume electric charge, obtained for various weakly-conducting liquids in cells with planar electrodes; • - the development of methods for determining the properties of liquids, such as the conduction, the coefficients of mobility of ions, the constants of volume and surface electrochemical reactions from the experimental data on a non-stationary passage of current and current-voltage characteristics.

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