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Some basic matters concerning with the heat effect at electrode–electrolyte interface are briefly introduced in this paper. They include the concepts and definition about the electrochemical Peltier heat (EPH) and the Peltier coefficient for the electrode process, the absolute scale, the fundamental equations on this scale for thermoelectrochemistry, and the issues of the entropy changes on this scale...
A method for measuring the electrochemical Peltier heat (EPH) of a single electrode reaction has been developed and an absolute scale is suggested to obtain EPH of the standard hydrogen electrode. The scale is based on ϕ0*=0 and ΔS0*=0 for any electrode reaction at zero Kelvin, in accord with the third law of thermodynamics. The relationships between entropy, enthalpy and free energy changes on this...
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