About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technology 2026: Advancement in Energy Materials - Theory, Simulation, Characterization, Application
|
| Presentation Title |
Phase equilibria and thermodynamic properties of functional chalcogenides in the Ag–Pd–Ge–S system |
| Author(s) |
Mykola Moroz, Pavlo Demchenko, Myroslava Prokhorenko, Bohdan Rudyk, Serhii Prokhorenko, Samira Imamaliyeva, Mahammad Babanly, Oleksandr Reshetnyak, Fiseha Tesfaye |
| On-Site Speaker (Planned) |
Fiseha Tesfaye |
| Abstract Scope |
The phase equilibria of the Ag–Pd–Ge–S system in the phase region Ge–GeS2–PdS2–PdS–Ag2PdS2 were established by a modified electromotive force (EMF) method. For the phase space studies and thermodynamic measurements, the following type of electrochemical cells (ECCs) were assembled: (−) С | Ag | SЕ | R(Ag+) | PЕ | С (+), where C is the inert electrode (graphite); Ag is the negative (left) electrode; SE is the solid-state electrolyte (Ag2GeS3 glass); PE is the positive (right) electrode; R(Ag+) is the diffusion region of Ag+ ions. The values of the standard thermodynamic functions (Gibb’s energy, enthalpy, and entropy) of the Ag2PdGeS4 compound were established for the first time from the linear temperature dependencies of the EMF of ECCs. The thermodynamic data observed in this work will contribute to a better understanding of the studied chalcogenides and their user limitations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Energy Conversion and Storage, Phase Transformations |