Determination of the constants of electrochemical reactions and the ion mobility coefficients in weakly conducting liquids from an analysis of the current?voltage characteristics

Autor: V. V. Gogosov, V. A. Polyanskii, G. A. Shaposhnikova, Yu. D. Shikhmurzaev
Rok vydání: 1984
Předmět:
Zdroj: Fluid Dynamics. 19:956-963
ISSN: 1573-8507
0015-4628
DOI: 10.1007/bf01411586
Popis: The problem is considered of the passage of a direct current through a solution of a weak electrolyte in a two-dimensional cell. Allowance is made for the electrochemical reactions of dissociation and reconbination which take place in the electrolyte when the rate of dissociation of the molecules is regarded as dependent on the electric field intensity [1–3]. For electrolytes whose recombination coefficient is of the order of magnitude of the Langevin coefficient, theoretical current—voltage characteristics are given for the limiting cases of large and small values of the characteristic times for the ion concentrations to be changed by electrochemical reactions and the transport of ions by the electric field. A method of determining the dissociation rate, the recombination coefficient, and the ion mobility coefficients is proposed on the basis of comparison of the theoretical and experimental current—voltage characteristics.
Databáze: OpenAIRE