Electrochemical investigation of the anode processes in LiF–NdF3 melt with low oxygen content

Fan, Chenming; Liu, Shi-zhe; Gu, Jingjiu; Guan, Shiyou; Zhao, Jing; Li, Bing

doi:10.1007/s12613-020-2010-7

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“…Recently, the industrial production of La and La alloys has mainly been based on the molten salt electrolysis method of a fluoride-oxide system. It is because of the advantages of the fluoride-oxide system in industrial production, such as environmental friendliness, higher current efficiency, and lower hygroscopicity than chloride molten salts. , Meanwhile, this method of electrolysis specifically involves the ionization of rare earth metal oxides in a fluoride electrolyte and the subsequent formation of a metal or alloy at the cathode. In the electrolysis of La and La alloys using the fluoride-oxide system, the LaF 3 electrolyte and La 2 O 3 additives in the electrolyte provide the source of La in the fluoride melt.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode

Pan,

Yan,

Deng

et al. 2024

J. Phys. Chem. C

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Electrolyte is considered to be one of the key factors affecting electrolysis in the rare earth and their alloys industry. Generally, the fluoride system is chosen as the electrolyte for industrial production. However, the molten salt electrolysis method for fluoride-oxide systems is not well understood and has not been systematically studied at this stage. In order to supplement this part, lanthanum (La) ions have been chosen as the research object in this paper to systematically investigate the preparation of La−Ni alloy from LaF 3 −LiF-CaF 2 −La 2 O 3 molten salt. A series of electrochemical methods were used to investigate the mechanism and kinetic properties of La(III) reduction on W and Ni electrodes. The electrochemical reduction properties and kinetic parameters of La were obtained. La−Ni alloy was prepared by potentiostatic electrolysis, and it was verified by detailed analysis through characterization methods. On this basis, LaNi 5 intermetallic compound was successfully prepared on Ni electrode. This study provides valuable theoretical guidance for the development of La alloy preparation with fluoride salt systems in industry.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode

Pan,

Yan,

Deng

et al. 2024

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

Electrochemical investigation of the anode processes in LiF–NdF3 melt with low oxygen content

Cited by 1 publication

References 11 publications

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode

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Electrochemical investigation of the anode processes in LiF–NdF3 melt with low oxygen content

Cited by 1 publication

References 11 publications

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF3–LiF-CaF2-La2O3 Molten Salt on Nickel Electrode

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF3–LiF-CaF2-La2O3 Molten Salt on Nickel Electrode

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Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode

Electrochemical Behavior and Preparation of La–Ni Alloy in LaF₃–LiF-CaF₂-La₂O₃ Molten Salt on Nickel Electrode