Abstract
The electrochemical reduction process and rate determining step of Li ion on a tungsten electrode at 1203 K in a LiF-BaF2-LiCl molten system were studied by cyclic voltammetry, chronoamperometry and chronopotentiometry methods using a three-electrode system and electrochemical workstation AUTOLAB. The results showed that the reduction potential of Li ion was at around -1.0 V on a tungsten electrode as compared with a platinum electrode. The reduction process of Li ion on a tungsten electrode occurred in a single step with the exchange of one electron. Chronoamperograms indicated that the cathode process was controlled by the diffusion step of ions and the diffusion coefficient was calculated to be 4.5 × 10-6 cm2•s-1.
Graphical Abstract
Keywords
molten salt, cathode process, electrochemical, diffusion control
Publication Date
2016-06-28
Online Available Date
2015-11-19
Revised Date
2015-10-11
Received Date
2015-09-21
Recommended Citation
Shao-hua YANG, Jun WANG, Xiao-hui LAI, Hao-ran WANG.
The Electrochemical Behavior of Li+ in LiF-BaF2-LiCl Molten Salt System[J]. Journal of Electrochemistry,
2016
,
22(3): 306-310.
DOI: 10.13208/j.electrochem.150918
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol22/iss3/10
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