Thermodynamic stability of solid phases in the system Cu–O–Al2O3 by means of the EMF and DSC-TGA techniques

Dmitry Sukhomlinov*, Fiseha Tesfaye, Niko Hellstén, Daniel Lindberg, Pekka Taskinen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Thermodynamic properties of solid phases in the Cu–O–Al2O3 system were measured by means of the EMF method with oxygen concentration galvanic cells based on stabilized zirconia solid electrolytes. The standard Gibbs energies of formation of pure copper oxides and copper aluminates from their component oxides were determined. Copper aluminates were also investigated calorimetrically by the DSC-TGA combined techniques. Based on the calorimetric measurements, the enthalpies and temperatures of spinel decomposition and delafossite melting were determined. The obtained results were discussed and compared with the available literature data.

Original languageEnglish
Pages (from-to)959-972
Number of pages14
JournalJOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume22
Issue number4
Early online date2016
DOIs
Publication statusPublished - Apr 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • Aluminate
  • Calorimetry
  • Copper
  • Electrochemistry
  • Oxide
  • Thermodynamics

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