Analysis of Electrochemical Behavior of (LiF–CaF2)eut.–Yb2O3 System with (Ni2+/Ni) Internal Reference Electrode
Analysis of Electrochemical Behavior of (LiF–CaF2)eut.–Yb2O3 System with (Ni2+/Ni) Internal Reference Electrode
复制标题
(LiF-CaF2)eut.-Yb2O3体系与(Ni2/Ni)内参比电极的电化学行为分析
DOI：
10.1149/1945-7111/ac87d4
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发表时间：
2022-08
影响因子：
3.9
通讯作者：
Zhongning Shi
中科院分区：
文献类型：
--
作者：
Boqing Cai;Yongjian Zhang;Xu Wang;Chunfa Liao;Kailei Sun;Zhongning Shi
Abstract The transient electrochemical behavior of the Yb (III) ion (Yb3+) on the surface of a Ni working electrode in a (LiF–CaF2)eut.–Yb2O3 molten salt system was analyzed using a three-electrode system with a reversible (Ni2+/Ni) internal reference electrode and Pt external reference electrode. The (Ni2+/Ni) internal reference electrode exhibited good stability and reliability, and provided results that were consistent with those of the Pt external reference electrode. The (Ni2+/Ni) electrode also had a wider measurement window for analysis of the electrochemical process than that of the Ni working electrode. Cyclic voltammetry, square wave voltammetry, chronopotentiometry, and chronoamperometry were used to analyze the Yb3+ ion in the (LiF–CaF2)eut. –Yb2O3 (0.03 mol%) system. It was confirmed that the Yb3+ ion was reduced according to Yb3++e→Yb2+ and Yb2++2e→Yb, and the electrode reaction process was quasi-reversible and controlled by diffusion. Moreover, the Yb3+ ion alloyed with the Ni electrode to form a Ni–Yb alloy.
