| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6614181 | Electrochimica Acta | 2014 | 8 Pages |
Abstract
This work presents an electrochemical study of Er3+ and Al3+ in the LiCl-KCl-AlCl3-Er2O3 melts at 773Â K. Gibbs energy calculation shows that AlCl3 can favorably chloridize Er2O3 and release Er3+ ions under this condition. Cyclic voltammetry, square wave voltammetry, chronopotentiometry and open-circuit chronopotentiometry were applied using a molybdenum electrode to investigate the reduction behavior of Er3+ and Al3+ and to identify the Er-Al alloys. A series of redox signals corresponding to different kinds of Er-Al alloys were revealed. Potentiostatic and gavanostastic electrolysis were both conducted on an aluminium electrode to prepare the Er-Al alloys. The obtained deposits were charaterized by SEM-EDS and XRD. A layer of ErAl3 was obtained by potentiostatic electrolysis, whereas two kinds of intermetallic compounds of ErAl3 and ErAl2 were formed by galvanostatic electrolysis.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Kui Liu, Ya-Lan Liu, Li-Yong Yuan, Xiu-Liang Zhao, Hui He, Guo-An Ye, Zhi-Fang Chai, Wei-Qun Shi,