Electrochemical behavior and electrowinning of uranium(IV) from FLiNaK molten salt
Jiang, F; Huang, W; Zheng, HY; Zhu, TJ; She, CF; Gao, S; Long, D; Gong, Y; Li, QN
2017
发表期刊JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN1588-2780
卷号3页码:1897-
文章类型期刊论文
摘要The electrochemical behaviors and electrowinning of uranium from LiF-NaF-KF (46.5-11.5-42.0 mol%, FLiNaK) molten salt were investigated. Cyclic voltammetric and chronopotentiometric studies revealed the presence of two steps during the electro-reduction of UF4 on W electode. U(IV) undergoes a one-electron reduction to form U(III) followed by a three-electron reduction to form U(0). The diffusion coefficient (D) of U(IV) ion was determined to be 1.33 x10(-6) cm(2) s(-1) at 550 degrees C. Based on the electrochemical behaviors of U(IV) in FLiNaK melt, pulse current electrolysis was carried out using Ni electrode. The black bulks obtained as electrolysis products were characterized to contain metallic U. Consecutive electrolysis experiments demonstrated up to 74.7% U can be separated from the fluoride melt.
关键词Uranium Fluoride Molten Salt Electrochemical Behavior Electrowinning
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27307
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Jiang, F,Huang, W,Zheng, HY,et al. Electrochemical behavior and electrowinning of uranium(IV) from FLiNaK molten salt[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2017,3:1897-.
APA Jiang, F.,Huang, W.,Zheng, HY.,Zhu, TJ.,She, CF.,...&Li, QN.(2017).Electrochemical behavior and electrowinning of uranium(IV) from FLiNaK molten salt.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,3,1897-.
MLA Jiang, F,et al."Electrochemical behavior and electrowinning of uranium(IV) from FLiNaK molten salt".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 3(2017):1897-.
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