Abstract

A method for determining Peltier heats based on the analysis of electrode/molten electrolyte interface temperature oscillations when applying symmetric rectangular current pulses to an electrochemical cell is proposed. An equation of the temperature wave under quasi-stationary conditions has been derived from the consideration of heat fluxes at the interface. Using this equation, Peltier and heat emission coefficients have been determined experimentally for the systems Ag/AgCl melt, Ag/AgCl, KCl melt, and Mo/Cd 2+ 2, Cd 2+ melt. A comparison of the Peltier coefficient values obtained with thermoelectric coefficients allowed us to substantiate the second Thomson relation as being applicable to the electrochemical systems discussed in the paper.

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