Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6608188 | Electrochimica Acta | 2016 | 8 Pages |
Abstract
The electrochemical behavior of Th(IV) ion on molybdenum (Mo) electrode was studied by cyclic voltammetry (CV) and square wave voltammetry (SWV) technologies at 773 K in ThF4-LiCl-KCl melt. The reduction of Th(IV) to metal Th at â1.67Â V (vs. Ag/AgCl) is a four-electron exchange process, which is quasi-reversible and diffusion-controlled. The diffusion coefficient (D) and activation energy of diffusion process for Th(IV) were determined to be 3.77Â ÃÂ 10â5Â cm2Â sâ1 and 59.2Â kJÂ molâ1. The pulse potential electrolysis of ThF4-LiCl-KCl melt revealed that 86.8% of Th(IV) can be separated from the melt based on the inductively coupled plasma atomic emission spectrometer (ICP-AES) results.
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Physical Sciences and Engineering
Chemical Engineering
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Authors
Xianbin Wang, Wei Huang, Yu Gong, Feng Jiang, Haiyang Zheng, Tiejian Zhu, Dewu Long, Qingnuan Li,