OBTAINING THERMOELECTRIC MATERIAL Cu<sub>2</sub>Se BY THE SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS METHOD-Reference-Cited by-同舟云学术

OBTAINING THERMOELECTRIC MATERIAL Cu<sub>2</sub>Se BY THE SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS METHOD

Published:2023-03-01 Issue:1 Volume:509 Page:21-27
ISSN:2686-7400
Container-title:Доклады Российской академии наук. Физика, технические науки
language:
Short-container-title:Doklady Rossijskoj akademii nauk. Fizika, tehničeskie nauki

Author:

Nigmatullina G. R.¹,Kovalev D. Yu.¹,Alymov M. I.¹

Affiliation:

1. Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences

Abstract

Using the method of self-propagating high-temperature synthesis in the combustion mode, a product based on the α-Cu2Se phase was obtained from a 2Cu + Se powder mixture. The effect of synthesis conditions on the composition of the combustion product was studied and the unit cell parameters of the synthesized phases were determined. It has been established that as a result of combustion of pressed 2Cu+Se mixtures at an Ar pressure of 0.5–1.5 MPa, a product is formed containing two modifications of Cu2Se – low-temperature monoclinic α-Cu2Se and high-temperature cubic β-Cu1.8Se phases. Combustion of a 2Cu+Se mixture of bulk density at an Ar pressure above 0.5 MPa yielded a single-phase product, the monoclinic α-Cu2Se phase.

Publisher

The Russian Academy of Sciences

Reference24 articles.

1. Nunna R., Qiu P., Yin M., Chen H., Hanus R., Song Q., Chen L. Ultrahigh thermoelectric performance in Cu2Sebased hybrid materials with highly dispersed molecular CNTs // Energy & Environmental Science. 2017. V. 10. I. 9. P. 1928–1935. https://doi.org/10.1039/c7ee01737e

2. Hu Q., Zhang Y., Zhang Y., Li X.-J., Song H. High thermoelectric performance in Cu2Se/CDs hybrid materials // J. Alloys and Compounds. 2019. P. 152204. https://doi.org/10.1016/j.jallcom.2019.152204

3. Lei J., Ma Z., Zhang D., Chen Y., Wang C., Yang X., Wang Y. High thermoelectric performance in Cu2Se superionic conductor with enhanced liquid-like behaviour by dispersing SiC // J. Materials Chemistry A. 2019. V. 7. P. 7006–7014. https://doi.org/10.1039/c8ta12210e

4. Liu W.D., Yang L., Chen Z.G. Cu2Se thermoelectrics: property, methodology, and device // Nano Today. 2020. V. 35. P. 100938. https://doi.org/10.1016/j.nantod.2020.100938

5. Liu H., Shi X., Xu F., Zhang L., Zhang W., Chen L., Li Q., Uher C., Day T., Snyder G.J. Copper ion liquid-like thermoelectrics // Nature Materials. 2012. V. 11. I. 5. P. 422–425. https://doi.org/10.1038/nmat3273