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• 作者：M.V. Moroz ; M.V. Prokhorenko ; O.V. Reshetnyak…
• 关键词：Ag–Hg–Ge–Se system ; Phase equilibria ; Thermodynamic properties ; EMF method
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：21
• 期：3
• 页码：833-837
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Physical Chemistry; Electrochemistry; Energy Storage; Characterization and Evaluation of Materials; Analytical Chemistry; Condensed Matter Physics;
• 出版者：Springer Berlin Heidelberg
• ISSN：1433-0768
• 卷排序：21

文摘

Triangulation of the Ag–Hg–Ge–Se system in the vicinity of GeSe₂, HgSe, Hg₂GeSe₃, Hg₂GeSe₄, Ag₂Hg₃GeSe₆, and Ag_1.4Hg_1.3GeSe₆ compounds and selenium was performed using X-ray diffraction and differential thermal analysis methods. The spatial position of the determined four-phase regions regarding figurative point of silver was used to write the equations of virtual potential-forming chemical reactions. Potential-forming processes were performed in electrochemical cells (ECCs) of the type (−) C | Ag | Ag₃GeS₃I glass | D | C (+) where C are the inert (graphite) electrodes, Ag and D are the electrodes of the ECCs, D represents equilibrium four-phase alloys, and Ag₃GeS₃I glass is a membrane with purely ionic Ag+ conductivity. The linear dependences of the EMF of galvanic cells on temperature in the range of 425–455 K were used to calculate the standard thermodynamic values of saturated solid solutions of Hg₂GeSe₃, Hg₂GeSe₄, Ag₂Hg₃GeSe₆, and Ag_1.4Hg_1.3GeSe₆ compounds.