Thermodynamic properties of solid solutions in the PbSe—AgSbSe2 system
Russian Chemical Bulletin, vol.69, no.4, pp.660-664, 2020 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 69 Issue: 4
- Publication Date: 2020
- Doi Number: 10.1007/s11172-020-2814-7
- Journal Name: Russian Chemical Bulletin
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier
- Page Numbers: pp.660-664
- Keywords: EMF method, PbSe—AgSbSe2 system, silver—lead—antimony selenides, solid solutions, thermodynamic properties
- Open Archive Collection: Article
- Azerbaijan State University of Economics (UNEC) Affiliated: Yes
Abstract
The results of the study of the PbSe—AgSbSe2 system by measuring the emf of concentration chains with respect to PbSe in a temperature range of 300–450 K are presented. The formation in the system of a wide (37–100 mol.% AgSbSe2) region of solid solutions based on AgSbSe2 is shown. The partial thermodynamic functions of PbSe and lead in the alloys are calculated from the equations of the temperature dependences of the emf. The standard thermodynamic functions of formation and standard entropies of solid solutions (2PbSe)x(AgSbSe2)1−x (x = 0.4, 0.6, 0.8, and 0.9) are calculated by the integration of the Gibbs—Duhem equation over the PbSe—AgSbSe2 section using the literature data on the corresponding thermodynamic data for compounds PbSe and AgSbSe2.