Thermodynamic study of solid solutions in the SnTe–AgSbTe2 system by means of EMF with solid electrolyte Ag4RbI5
- Authors: Mashadieva L.F.1, Yusibov Y.A.2, Kevser D.2, Babanly M.B.1
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Affiliations:
- Nagiyev Institute of Catalysis and Inorganic Chemistry
- Baku State University
- Issue: Vol 91, No 9 (2017)
- Pages: 1642-1646
- Section: Chemical Thermodynamics and Thermochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/169684
- DOI: https://doi.org/10.1134/S0036024417090187
- ID: 169684
Cite item
Abstract
The results from studying the SnTe–AgSbTe2 system by means of EMF with the solid electrolyte Ag4RbI5 in the temperature range of 300–430 K are presented. The formation of a wide (≥80 mol % of AgSbTe2) region of solid solutions based on SnTe is confirmed. Partial thermodynamic functions ΔG̅, ΔH̅, and ΔS̅ of silver in alloys are calculated from the equations for the EMF temperature dependences. Based on the literature data regarding solid-phase equilibria in the Ag2Te–SnTe–Sb2Te3–Te system, potential-determining reactions are identified that allow us to calculate the standard thermodynamic formation functions and standard entropies of solid solutions (2SnTe)x(AgSbTe2)1−x (х = 0.2, 0.4, 0.6, 0.8, and 0.9).
About the authors
L. F. Mashadieva
Nagiyev Institute of Catalysis and Inorganic Chemistry
Author for correspondence.
Email: leylafm@rambler.ru
Azerbaijan, Baku, AZ1143
Yu. A. Yusibov
Baku State University
Email: leylafm@rambler.ru
Azerbaijan, Baku, AZ1148
Dzh. Kevser
Baku State University
Email: leylafm@rambler.ru
Azerbaijan, Baku, AZ1148
M. B. Babanly
Nagiyev Institute of Catalysis and Inorganic Chemistry
Email: leylafm@rambler.ru
Azerbaijan, Baku, AZ1143