Synthesis and Thermodynamic Investigation of Energy Materials in the Ag-Te-Cl System by the Solid-State Galvanic Cells

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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2021-05

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en

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8

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JOM

Abstract

Discoveries of new energy materials with unique properties and wider thermal stability ranges enable sustainable developments toward a low-carbon society. In this work, phase stabilities and thermodynamic properties of selected compounds in the Ag-Te-Cl system with potential application as energy materials have been critically reviewed and experimentally investigated. Based on the literature data on phase formations in the AgCl-Ag2Te-Te part of the Ag-Te-Cl system and the results of electromotive force (EMF) measurements in this work, formations of the Ag19Te6Cl7, Ag10Te4Cl3, Ag5Te2Cl, and Ag23Te12Cl compounds below 500 K were established. The EMF measurements were performed in carefully built galvanic cells with positive electrodes prepared from finely ground mixtures of pure substances Ag, Te, and AgCl. Based on the temperature dependences of the EMF of the cells, the standard thermodynamic quantities of the ternary compounds of the Ag-Te-Cl system were experimentally determined for the first time.

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Funding Information: This research was supported by the national projects of the Ministry of Education and Science of Ukraine: “Synthesis, physico-chemical and thermodynamic properties of nanosized and nanostructured materials for electrochemical systems” (No. 0120U102184). This work was partly supported by the Academy of Finland project (Decision Number 311537) as part of the activities of the Johan Gadolin Process Chemistry Centre at Åbo Akademi University. Publisher Copyright: © 2021, The Minerals, Metals & Materials Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

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Moroz , M , Tesfaye , F , Demchenko , P , Prokhorenko , M , Prokhorenko , S , Lindberg , D , Reshetnyak , O & Hupa , L 2021 , ' Synthesis and Thermodynamic Investigation of Energy Materials in the Ag-Te-Cl System by the Solid-State Galvanic Cells ' , JOM , vol. 73 , no. 5 , pp. 1487-1494 . https://doi.org/10.1007/s11837-021-04619-9