熔盐电解法制备Sm合金的研究进展-中国材料进展

文章信息/Info

Title:: Research Progress on Preparation of Sm Alloy by Molten Salt Electrolysis

作者:: 康佳; 刘玉宝; 于兵; 黄海涛; 张全军; 闫奇操; （包头稀土研究院白云鄂博稀土资源研究与综合利用国家重点实验室，内蒙古包头 014030）

Author(s):: KANG Jia; LIU Yubao; YU Bing; HUANG Haitao; ZHANG Quanjun; YAN Qicao; (State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou 014030, China)

Keywords:: molten salt electrolysis; Sm alloy; rare earth; electrochemical behavior; formation rule

摘要:: 稀土钐(Sm)是变价稀土元素，因此Sm合金具有独有的特性，使其成为一种极具潜力的功能材料，常被应用于稀土永磁、储氢、发光以及航空航天等领域。系统地比较了现阶段制备Sm合金方法的优缺点，其中熔盐电解法制备Sm合金具有产物更加纯净、低成本、连续作业等优点，成为近期学者的研究热点。然后，重点阐述了熔盐电解法制备SmAl、SmCu、SmCo、SmNi和SmFe合金的最新研究进展及存在的问题，介绍了Sm离子在熔盐中的电化学行为及Sm合金在阴极上的生成规律，并提出了熔盐电解法制备Sm合金进一步向产业化方面发展的重点研究方向。

Abstract:: Samarium alloy is considered to be a potential function material, which has changeable electrovalence character, is widely used as permanentmagnetic, hydrogen-storage, luminescent and aerospace materials. In this paper, the advantages and disadvantages of the current methods for preparing Sm alloys were systematically compared. In contrast, the molten salt electrolysis preparation has the advantages of purer products, low cost, and continuous operation, which makes this method a research hotspot in current research. The latest research progress and existing problems on the preparation of Sm-Al, Sm-Cu, Sm-Co, Sm-Ni and Sm-Fe alloys by molten salt electrolysis were emphatically described, and the electrochemical behaviors of Sm3+ in molten salt and the formation rule of Sm alloy on the cathode were introduced. The direction of further industrialization of Sm alloy prepared by molten salt electrolysis was also put forward.