Thermodynamic Study of Cu2GeS3 and Cu2–x Ag x GeS3 Solid Solutions by the EMF Method with a Cu4RbCl3I2 Solid Electrolyte

Thermodynamic Study of Cu2GeS3 and Cu2–x Ag x GeS3 Solid Solutions by the EMF Method with a... The Cu2GeS3–Ag2GeS3 system was studied by the EMF method with a Cu4RbCl3I2 solid electrolyte in the temperature range 300–380 K. The formation of wide regions of solid solutions from the starting compounds in this system was confirmed. The partial thermodynamic functions (ΔG, ΔH, ΔS) of copper in alloys were calculated from the equations of the temperature dependences of EMF. The current-forming reactions were determined based on the schematic diagram of solid-phase equilibria in the Cu–Ag–Ge–S system and used to calculate the standard thermodynamic functions of formation and the standard entropies of the compound Cu2GeS3 and solid solutions Cu2–x Ag x GeS3 (х = 0.2, 0.4, 0.6, 1.6, and 1.8) and the thermodynamic functions of mixing of the latter from ternary compounds. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Electrochemistry Springer Journals

Thermodynamic Study of Cu2GeS3 and Cu2–x Ag x GeS3 Solid Solutions by the EMF Method with a Cu4RbCl3I2 Solid Electrolyte

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Publisher
Pleiades Publishing
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Electrochemistry; Physical Chemistry
ISSN
1023-1935
eISSN
1608-3342
D.O.I.
10.1134/S1023193518020027
Publisher site
See Article on Publisher Site

Abstract

The Cu2GeS3–Ag2GeS3 system was studied by the EMF method with a Cu4RbCl3I2 solid electrolyte in the temperature range 300–380 K. The formation of wide regions of solid solutions from the starting compounds in this system was confirmed. The partial thermodynamic functions (ΔG, ΔH, ΔS) of copper in alloys were calculated from the equations of the temperature dependences of EMF. The current-forming reactions were determined based on the schematic diagram of solid-phase equilibria in the Cu–Ag–Ge–S system and used to calculate the standard thermodynamic functions of formation and the standard entropies of the compound Cu2GeS3 and solid solutions Cu2–x Ag x GeS3 (х = 0.2, 0.4, 0.6, 1.6, and 1.8) and the thermodynamic functions of mixing of the latter from ternary compounds.

Journal

Russian Journal of ElectrochemistrySpringer Journals

Published: Mar 15, 2018

References

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