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Vol. 24, No. 1. P. 58–71

Adyghe Int. Sci. J. Vol. 24, No. 1. P. 58–71. 

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DOI: https://doi.org/10.47928/1726-9946-2024-24-1-58-71
EDN: PGELNG

CHEMISTRY

  Original Article

Study of the mechanism of joint electroreduction

of Dy3+ and Co2+ ions in the eutectic KCl-NaCl-CsCl

melt at 823 K

Hasbi Bilyalovich Kushkhov
PhD in Chemistry, Professor, full member of AIAS, Head of the Department of Inorganic and Physical Chemistry, Kabardino-Balkarian State University named after M. Berbekova, ORCHID: 0000-0002-8613-9868, hasbikushchov@yahoo.com
Astemir Andzorovich Khotov
graduate student of the Department of Inorganic and Physical Chemistry, Kabardino-Balkarian State University named after H. M. Berbekova, astemir.xotov@mail.ru
Abdulkader Moqbel Farhan Qahtan
PhD in chemistry, assistant of professor Head of the Department of General Chemistry, College of Education, Seiyun university (Seiyun, Yemen), ORCHID: 0009-0009-8923-7867

Abstract.The kinetic patterns of the electroreduction of the Co2+ ion in the eutectic melt KCl-NaCl-CsCl at 823 K have been determined. It has been established that the release potentials of metallic cobalt and dysprosium on an inert tungsten electrode in the molten KCl-NaCl-CsCl system differ by approximately 1.5 V. It has been shown that with the combined content of Co2+ and Dy3+ ions in the eutectic KCl-NaCl-CsCl melt, a certain depolarization of the electroreduction of dysprosium ions takes place on the metal cobalt pre-precipitated on the tungsten electrode with the formation of intermetallic phases of different compositions based on cobalt and dysprosium. The dissolution potentials of DyxCoy intermetallic phases of different compositions were determined using switch-off chronopotentiometry.

Keywords: ionic melts, electroreduction, electrochemical synthesis, dysprosium and cobalt ions, cyclic and square wave voltammetry, open-circuit chronopotentiometry.

Funding. This work was financially supported by RNF grant 23-23-00360.

Competing interests. There are no conflicts of interest regarding authorship and publication. Contribution and Responsibility. All authors contributed to this article. Authors are solely responsible for providing the final version of the article in print. The final version of the manuscript was approved by all authors.

For citation. Kushkhov H. B., Hotov A. A., Qahtan A. M. F. Study of the mechanism of joint electroreduction of Dy3+ and Co2+ ions in the eutectic KCl-NaCl-CsCl melt at 823 K. Adyghe Int. Sci. J. 2024. Vol. 24, No. 1. Pp. 58–71. DOI: https://doi.org/10.47928/1726-9946-2024-24-1-58-71; EDN: PGELNG

Submitted 24.02.2024; approved after reviewing 20.03.2024; accepted for publication 27.03.2024.

                                                                                                                                             © Kushkhov Kh. B.,
                                                                                                                                                                              Hotov A. A.,
                                                                                                                                                                              Qahtan A. M. F., 2024

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