Structure and Properties of Phases in the Cu2-ХSe-Sb2Se3 System. The Cu2-XSe-Sb2Se3 Phase Diagram | Sciact - CRIS-system of Boreskov Institute of Catalysis

Structure and Properties of Phases in the Cu2-ХSe-Sb2Se3 System. The Cu2-XSe-Sb2Se3 Phase Diagram Full article

Journal

Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669

Output data

Year: 2022, Volume: 906, Article number : 164384, Pages count : 21 DOI: 10.1016/j.jallcom.2022.164384

Tags

Phase equilibria; Phase diagram; High-temperature X-ray diffraction; Redlich-Kister polynomial model; Scanning electron microscopy; Differential scanning calorimetry

Authors

Shtykova M.A. ¹ , Molokeev M.S. ^2,3 , Zakharov B.A. ^4,5 , Selezneva N.V. ⁶ , Aleksandrovsky A.S. ^2,3 , Bubnova R.S. ⁷ , Kamaev D.N. ⁸ , Gubin A.A. ⁹ , Habibullaev N.N. ¹ , Matigorov A.V. ¹⁰ , Boldyreva E.V. ^4,5 , Andreev O.V. ^1,11

Affiliations

1	Department of Inorganic and Physical Chemistry, Institute of Chemistry, Tyumen State University, Volodarsky str. 6, 625003 Tyumen, Russia
2	Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok Str. 50, Building 38, 660036 Krasnoyarsk, Russia
3	Siberian Federal University, Svobodnyj av. 79, 660079 Krasnoyarsk, Russia
4	Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, 630090 Novosibirsk, Russia
5	Novosibirsk State University, Pirogova str. 2, 630090 Novosibirsk, Russia
6	Department of Condensed Matter Physics and Nanoscale Systems, Institute of Natural Sciences and Mathematics, Ural Federal University, Mira str. 19, 620002 Yekaterinburg, Russia
7	Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, Makarov Emb., 2, 199034 St. Petersburg, Russia
8	Department of Physical and Applied Chemistry, Institute of Natural Sciences and Mathematics, Kurgan State University, Sovetskaya str. 2, b. 4, 640020 Kurgan, Russia
9	Laboratory of Electron and Probe Microscopy, REC "Nanotechnology", Tyumen State University, Volodarsky str. 6, 625003 Tyumen, Russia
10	Engineering Center of Composite Materials Based on Tungsten Compounds and Rare Earth Elements, Tyumen State University, Volodarsky str. 6, 625003 Tyumen, Russia
11	Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Pervomaiskaya str. 91, 620990 Yekaterinburg, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0002
2	Ministry of Science and Higher Education of the Russian Federation	0097-2019-0013 (АААА-А19-119022290089-5)

The phase diagram of the Cu2−XSe-Sb2Se3 system is revisited to clarify ambiguity/disagreement in previously reported data. Ternary Cu3SbSe3 and CuSbSe2 compounds were obtained. In order to confirm that the phases have been identified correctly, crystal structures were solved, and the energy band gaps measured. For the sample containing 75 mol% Sb2Se3 and 25 mol% Cu1.995Se the temperature range of the stability of the high-temperature CuSb3Se5 phase was determined for the first time. This phase is formed at 445 °С, decomposes following a peritectic reaction at 527 °С, and can be quenched. A high-temperature X-ray diffraction study of a sample containing 75 mol% Sb2Se3 and 25 mol% Cu2Se allowed us to measure the thermal expansion of the CuSbSe2 and Sb2Se3 phases present in the sample. The anisotropy of thermal expansion of CuSbSe2 is similar to that of As2S3 (orpiment); thermal expansion of Sb2Se3 is similar to that of AsS (realgar). The 6 balance equations of the invariant phase transformations involving all the ternary compounds existing in the Cu2−XSe-Sb2Se3 system were suggested for the first time. The temperature and the enthalpies of all these transformations were measured. A phase diagram of the Cu2−XSe-Sb2Se3 system was found for the first time in all the range of concentrations at temperatures from ambient to the complete melting. This diagram takes into consideration the phase equilibria that involve all the ternary compounds that are possible in this system. The liquidus of the Cu2−XSe-Sb2Se3 system was calculated according to Redlich-Kister equation; it agrees with the experimental data within 1–17 °С.

Shtykova M.A. , Molokeev M.S. , Zakharov B.A. , Selezneva N.V. , Aleksandrovsky A.S. , Bubnova R.S. , Kamaev D.N. , Gubin A.A. , Habibullaev N.N. , Matigorov A.V. , Boldyreva E.V. , Andreev O.V.
Structure and Properties of Phases in the Cu2-ХSe-Sb2Se3 System. The Cu2-XSe-Sb2Se3 Phase Diagram
Journal of Alloys and Compounds. 2022. V.906. 164384 :1-21. DOI: 10.1016/j.jallcom.2022.164384 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Nov 7, 2021
Accepted:	Feb 25, 2022
Published online:	Feb 28, 2022
Published print:	Jun 15, 2022

Web of science:	WOS:000779662400001
Scopus:	2-s2.0-85125753287
Elibrary:	48188030
Chemical Abstracts:	2022:659502
OpenAlex:	W4214889167

DB	Citing
Scopus	11
Elibrary	8
Web of science	10
OpenAlex	8