Thermodynamic study in the Ag-Sb-S system by the EMF method

Markus Aspiala*, Fiseha Tesfaye, Pekka Taskinen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)

Abstract

In this study, thermodynamic properties of AgSbS2 and Ag3SbS3 have been determined by the advanced EMF method. All the measured phases have been carefully synthetized in evacuated quartz glass ampoules. The synthesized phases were analyzed by the SEM-EDS and DSC techniques. Solid state electrochemical cells of the type (Ag|AgI|Ag-Sb-S-compounds in equilibrium) were applied in EMF measurements. Independent experimental apparatuses were applied to prove the reproducibility of the measured EMF values. The measured E vs. T relations were analyzed, and thermodynamic functions of AgSbS2 and Ag3SbS3 have been determined. Accurate thermodynamic properties of both phases including data in new temperature ranges have been obtained. The results were compared with the available literature data and discussed.

Original languageEnglish
Pages (from-to)361-366
Number of pages6
JournalJournal of Chemical Thermodynamics
Volume98
DOIs
Publication statusPublished - 1 Jul 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Ag-Sb-S system
  • AgSbS
  • AgI
  • EMF technique
  • Gibbs energy

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