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2 Polish Journal of Chemistry

2 1998

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The kinetics of the Sn(II)/Sn electrode reaction in pure molten tin dichloride

Kaźmierczak J., Kowalczewska K.

Polish Journal of Chemistry

1998

Vol. 72, nr 6

1037-1044

Results of electrochemical investigation of the Sn(II)/Sn electrode reaction in pure molten tin(II) chloride are presented. The exchange current density has been determined by relaxation and impedance methods as 1.6 A cm(-2) for the anodic and 1.2 A cm(-2) for the cathodic process, both exhibiting a weak temperature dependence. Both, the inductive model of a double layer of a metallic electrode immersed in its pure molten salt, and a barrierless electron transition have been confirmed.

Kinetics and mechanism of the silver electrode reaction in molten AgCl-NaCl binary mixtures

Kisza A., Dzielendziak J., Kaźmierczak J.

Polish Journal of Chemistry

1998

Vol. 72, nr 10

2321-2330

Kinetics and mechanism of the silver electrode reaction in six melts of the binary AgCl-NaCl system were determined at several temperatures by Electrochemical Impedance Spectroscopy (EIS) and Relaxation Method with galvanostatic perturbation (RM). The exchange current density for this electrode process ranges from 2.5 to 4.5 cm(-2) for different melt composition. The diffusion coefficient of the silver ion and the activation parameters are also determined in melts containing 80 and 90 mol % of NaCl.