Aluminum assisted electrodeposition of europium in LiCl-KCl molten salt

作者：Bae Sang Eun^*; Park Yong Joon; Min Seul Ki; Cho Young Hwan; Song Kyuseok

来源：Electrochimica Acta, 2010, 55(8): 3022-3025.

DOI：10.1016/j.electacta.2009.12.075

• Eu
• Al
• Electrodeposition
• LiCl-KCl eutectic
• Potential window

Cyclic voltammetry (CV), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) were employed to investigate the electrodeposition of Eu and Al in an LiCl-KCl eutectic melt containing Eu(2+) and Al(3+) at 450 degrees C. In order to deposit a pure Eu and Al alloy, the stoichiometrically lower concentration of Al(3+) than that of Eu(2+) and Al wires as a counter electrode was introduced into the bath of LiCl-KCl melt for the electrodeposition. The electrodeposition takes place at a potential more negative than -1.95 V vs. Ag vertical bar Ag(+) while the deposit is oxidized at more positive potential than -1.92 V. Two new reduction peaks and an anodic peak on a W working electrode were observed at -2.39 V. -2.42V, and -2.1 V, vs. Ag vertical bar Ag(+), respectively, suggesting that the potential window of the Al system in LiCl-KCl melt can be extended to -2.43 V vs. Ag vertical bar Ag(+) The EDS analysis indicated that AIEu can be deposited at the potential more negative than -2.37 V.

• 出版日期2010-3-1