Fragment of the phase diagram of the Cu-CrSe2 system at room temperature

•Electromotive force dependence of the electrochemical cell.•Chemical recovery of copper.•Determination of phase boundaries for CuyCrSe2 and Cu1-xCrSe2.•The chemical and electrochemical extraction of Cu from CuCrSe2 was analysed. The chemical and electrochemical extraction of copper from CuCrSe2 was...

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Bibliographic Details
Published in:Materials letters 2025-03, Vol.382, p.137820, Article 137820
Main Authors: Postnikov, Mikhail S., Suslov, Evgeniy A., Onishenko, Anatoly O., Titov, Alexander N.
Format: Article
Language:English
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Summary:•Electromotive force dependence of the electrochemical cell.•Chemical recovery of copper.•Determination of phase boundaries for CuyCrSe2 and Cu1-xCrSe2.•The chemical and electrochemical extraction of Cu from CuCrSe2 was analysed. The chemical and electrochemical extraction of copper from CuCrSe2 was carried out at room temperature (RT). The compositions corresponding to the boundaries of the homogeneity region of CuyCrSe2 and Cu1-xCrSe2 were determined. X-ray diffraction (XRD) analysis demonstrated that within the composition range of y from 0 to 0.29, the phase with the structure of CrSe2 with space group P3¯m1 is stable. Furthermore, within the composition range of x from 0 to 0.33, the phase with the structure of delafossite CuCrSe2 (space group R3m) is stable.
ISSN:0167-577X
DOI:10.1016/j.matlet.2024.137820