THERMO-GALVANIC EFFECTS IN A NON-ISOTHERMAL ELEMENT BASED ON THE OF IRON-CARBON COMPOSITIONAL ELECTRODE AND ALKALINE ELECTROLYTE

摘要

The conditions for measuring thermal diffusion and thermoelectric effects in a non-isothermal element with composite electrodes based on powdered iron and carbon in alkaline electrolytes were determined using electrochemical impedance spectroscopy. The impact of the concentration of the components with various nature of conductivity on the appearance of additional heat capacitance and the Sore effect was shown by the calculations of the capacitance and the capacitance's dispersion in the low and high- frequency measurement ranges. An electrical equivalent circuit of a non-isothermal thermal galvanic element based on an iron-carbon composite electrode and an alkaline electrolyte was proposed.