Mechanism of the Combined Electroreduction of Dy3+ and Fe3+ Ions in the KCl-NaCl-CsCl Eutectic Melt at 823 K

被引：0

作者：

Kushkhov, Kh. B. ^{[1
]}

Khotov, A. A. ^{[1
]}

Kholkina, A. S. ^{[2
]}

Khasanov, V. V. ^{[1
]}

Dudarova, D. G. ^{[1
]}

机构：

[1] Berbekov Kabardino Balkar State Univ, Nalchik, Russia

[2] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg, Russia

来源：

RUSSIAN METALLURGY | 2024年 / 2024卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

ionic melts; combined electroreduction; dysprosium and iron ions; cyclic and square wave voltammetry; open circuit chronopotentiometry; ELECTROCHEMICAL FORMATION; ALLOY-FILMS; NI ALLOYS; LICL-KCL; RECOVERY; ALUMINUM; EXTRACTION; BEHAVIOR; ND; ELECTROEXTRACTION;

D O I：

10.1134/S0036029524701362

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The kinetic laws of Fe3+ ion electroreduction in the KCl-NaCl-CsCl eutectic melt at 823 K are determined. The potentials of metallic iron and dysprosium formation on the inert tungsten electrode in the KCl-NaCl-CsCl molten system are found to differ by approximately 1.5 V. In the case of the combined presence of Fe3+ and Dy3+ ions in the KCl-NaCl-CsCl eutectic melt, a certain depolarization of dysprosium ion electroreduction occurs on the metallic iron preliminary deposited at the tungsten electrode to form iron- and dysprosium-based intermetallic phases of different compositions. The dissolution potentials of the different intermetallic phases DyxFey are determined by open circuit chronopotentiometry.

引用

页码：239 / 246

页数：8

共 14 条

[1] A study of samarium ions electroreduction at various electrodes in KCl-NaCl-CsCl melt at T = 823 K
Kh. B. Kushkhov
M. K. Vindizheva
R. A. Karashaeva
M. R. Tlenkopachev
Russian Journal of Electrochemistry, 2010, 46 : 691 - 701
[2] A study of samarium ions electroreduction at various electrodes in KCl-NaCl-CsCl melt at T=823 K
Kushkhov, Kh B.
Vindizheva, M. K.
Karashaeva, R. A.
Tlenkopachev, M. R.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2010, 46 (06) : 691 - 701
[3] Electrochemical Behavior of Neodymium Ions and Their Combined Electroreduction with Nickel Ions in the KCl–NaCl–CsCl Eutectic Melt
Kushkhov K.B.
Kholkina A.S.
Ali Z.Z.
Khotov A.A.
Pashtova L.R.
Russian Metallurgy (Metally), 2023, 2023 (08) : 1175 - 1192
[4] Electroreduction of neodymium and praseodymium ions in equimolar KCl-NaCl and eutectic KCl-NaCl-CsCl melts at a tungsten electrode
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Zhanikaeva Z.A.
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[5] Electrochemical Behavior of Dysprosium Ion and Its Co-Electroreduction with Nickel Ions in the Molten KCl-NaCl-CsCl Eutectic
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Kholkina, Anna S.
Khotov, Astemir A.
Ali, Zhubagi Z.
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PROCESSES, 2023, 11 (10)
[6] Joint Electroreduction of La3+ and Ni2+ Ions in the Equimolar KCl–NaCl Melt at 973 K
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[7] Joint Electroreduction of La3+ and Ni2+ Ions in the Equimolar KCl-NaCl Melt at 973 K
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[8] Mechanism of Dy3+ and Nd3+ Ions Electrochemical Coreduction with Ni2+, Co2+, and Fe3+ Ions in Chloride Melts
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MATERIALS, 2021, 14 (23)
[9] Improvement of the coercivity of rod-like NiCuMg ferrites induced by substitution of Dy3+ ions for Fe3+ ions
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Journal of Materials Science: Materials in Electronics, 2017, 28 : 2901 - 2909
[10] Improvement of the coercivity of rod-like NiCuMg ferrites induced by substitution of Dy3+ ions for Fe3+ ions
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