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

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Dmitry Sukhomlinov, Fiseha Tesfaye, Niko Hellstén, Daniel Lindberg, Pekka Taskinen
Publisher: Springer Berlin Heidelberg
Place: Germany
Publication year: 2018
Journal: Journal of Solid State Electrochemistry
Volume number: 22
Issue number: 4
Start page: 959
End page: 972
eISSN: 1433-0768


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.


Keywords

Aluminum oxide, copper, differential scanning calorimetry, Electrochemistry, Thermal stability, Thermochemistry

Last updated on 2019-25-08 at 05:04