THERMODYNAMIC PROPERTIES OF THE Cu2 GeSe3 COMPOUND

Yusibov Y., Aliyeva Z., Babanlı M.

Azerbaijan Chemical Journal, vol.2023, no.1, pp.108-114, 2023 (Scopus) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 2023 Say: 1
  • Nəşr tarixi: 2023
  • Doi nömrəsi: 10.32737/0005-2531-2023-1-108-114
  • jurnalın adı: Azerbaijan Chemical Journal
  • Jurnalın baxıldığı indekslər: Scopus
  • Səhifə sayı: pp.108-114
  • Açar sözlər: copper-germanium selenide, Cu4RbCl3I2, EMF method, solid electrolyte, thermodynamic functions
  • Açıq Arxiv Kolleksiyası: Məqalə
  • Adres: Bəli

Qısa məlumat

The Cu2GeSe3 compound and phases based on it are of interest as environmentally friendly thermoelectric and photovoltaic materials. This paper presents the results of a thermodynamic study of this compound by the method of electromotive forces. We measured the EMF of concentration cells concerning copper electrode with solid Cu+ conductive electrolyte Cu4 RbCl3I2 in the 300-450 K temperature range. Based on the obtained experimental data, the partial molar functions of copper in equilibrium alloys from the three-phase region of the Cu2 GeSe3-GeSe2-Se phase diagram, as well as the standard thermodynamic functions of formation and the standard entropy of the Cu2GeSe3 compound, are calculated. A comparative analysis of the obtained results with the available literature data was carried out.