Electrochemical behavior and extraction of Nd (III) on reactive zinc electrode in LiCl-KCl melts

IF 2.8 2区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Nuclear Materials Pub Date : 2025-03-18 DOI:10.1016/j.jnucmat.2025.155751

De-Bin Ji , Rui-Long Liang , Heng-Yu Tan , Shao-Ting Zhang , De-Qiang Ji , Hong-Jun Wu

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Abstract

The efficient extraction of neodymium is of great significance in the dry reprocessing process for the nuclear fuel cycle. In this research, the extraction of Nd in a LiCl-KCl molten salt system was achieved by potentiostatic electrolysis and galvanostatic electrolysis using Zn as the active cathode. A variety of electrochemical methods were employed to deeply investigate the electrochemical behavior of Nd on an inert Mo electrode, galvanized (Zn-coated) Mo electrode, and liquid Zn electrode in the LiCl-KCl melt. The six Zn-Nd intermetallic compounds formed on the Zn-coated Mo electrode were analyzed and determined in detail, and the thermodynamic properties of these six Zn-Nd intermetallic compounds were investigated. Furthermore, the activity coefficients and solubilities of Nd on the liquid Zn electrode were calculated at different temperatures. This study provides some fundamental data for spent fuel reprocessing technology and is expected to help advance the sustainable development of nuclear energy.

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来源期刊

Journal of Nuclear Materials 工程技术-材料科学：综合

CiteScore

5.70

自引率

25.80%

发文量

601

审稿时长

63 days

期刊介绍： The Journal of Nuclear Materials publishes high quality papers in materials research for nuclear applications, primarily fission reactors, fusion reactors, and similar environments including radiation areas of charged particle accelerators. Both original research and critical review papers covering experimental, theoretical, and computational aspects of either fundamental or applied nature are welcome. The breadth of the field is such that a wide range of processes and properties in the field of materials science and engineering is of interest to the readership, spanning atom-scale processes, microstructures, thermodynamics, mechanical properties, physical properties, and corrosion, for example. Topics covered by JNM Fission reactor materials, including fuels, cladding, core structures, pressure vessels, coolant interactions with materials, moderator and control components, fission product behavior. Materials aspects of the entire fuel cycle. Materials aspects of the actinides and their compounds. Performance of nuclear waste materials; materials aspects of the immobilization of wastes. Fusion reactor materials, including first walls, blankets, insulators and magnets. Neutron and charged particle radiation effects in materials, including defects, transmutations, microstructures, phase changes and macroscopic properties. Interaction of plasmas, ion beams, electron beams and electromagnetic radiation with materials relevant to nuclear systems.