Cu4RbCl3I2 solid superionic conductor in thermodynamic study of three-component copper chalcogenides |
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Authors: | N. B. Babanly Yu. A. Yusibov R. J. Mirzoeva Yu. M. Shykhyev M. B. Babanly |
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Affiliation: | (1) Baku State University, ul. Z. Khalilova 23, Baku, AZ 1148, Azerbaijan |
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Abstract: | The Cu-B-Se (B = In, As, Sb, Bi) systems are studied by measurement of EMF for concentration circuits vs. a copper electrode in the temperature range of 300–430 K. A solid superionic Cu4RbCl3I2 conductor is used as an electrolyte. Diagrams of solid-phase equilibriums in the studied systems are constructed. Partial molar functions of alloyed copper are calculated on the basis of the equations of the temperature dependences of EMF. Potential-forming reactions corresponding to the measured EMF values are determined on the basis of the phase diagrams and standard thermodynamic formation functions and standard entropies of ternary compounds are calculated. |
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Keywords: | solid electrolyte Cu4RbCl3I2 EMF method thermodynamic properties ternary copper selenides CuInSe2 |
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