TY - JOUR
T1 - Electrochemical Deposition with Redox Replacement of Lanthanum with Uranium in Molten LiCl-KCl
AU - Eakin, Jeffrey
AU - Molina, Daniel
AU - Guo, Xiaofeng
AU - Beyenal, Haluk
AU - Ivory, Cornelius
N1 - Funding Information:
This research is supported by the Department of Energy, National Nuclear Science Administration under Award Number DE-NA0003856. Portions of this research were also supported by the Alexandra Navrotsky Institute for Experimental Thermodynamics. We thank Dr. James Boncella from the Department of Chemistry for providing dehydrated UCl4 used in all experiments. All SEM images were obtained through the Franceschi Microscopy and Imaging Center at WSU.
Funding Information:
This research is supported by the Department of Energy, National Nuclear Science Administration under Award Number DE-NA0003856. Portions of this research were also supported by the Alexandra Navrotsky Institute for Experimental Thermodynamics. We thank Dr. James Boncella from the Department of Chemistry for providing dehydrated UCl used in all experiments. All SEM images were obtained through the Franceschi Microscopy and Imaging Center at WSU. 4
Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.
PY - 2023/3/10
Y1 - 2023/3/10
N2 - Electrochemical recovery of dilute concentrations of actinides from spent nuclear fuel would reduce the longevity of storing high-level nuclear waste. Electrochemical deposition with redox replacement (EDRR) is used in a molten salt medium for the selective electrochemical recovery of uranium in the presence of excess concentrations of lanthanum. In each EDRR cycle, after a short electrodeposition pulse, the deposited lanthanum is spontaneously replaced by uranium at open circuit. After repeated cycles, uranium metal was obtained on a tungsten electrode immersed in a LiCl-KCl melt that contained 1 wt% lanthanum chloride—0.15 wt% uranium (IV) chloride. Scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDS) analysis revealed uranium particles approximately 0.5−1 μm with well-defined rectangular shapes; and with 20-60 times more uranium recovered on the surface of the electrode than lanthanum.
AB - Electrochemical recovery of dilute concentrations of actinides from spent nuclear fuel would reduce the longevity of storing high-level nuclear waste. Electrochemical deposition with redox replacement (EDRR) is used in a molten salt medium for the selective electrochemical recovery of uranium in the presence of excess concentrations of lanthanum. In each EDRR cycle, after a short electrodeposition pulse, the deposited lanthanum is spontaneously replaced by uranium at open circuit. After repeated cycles, uranium metal was obtained on a tungsten electrode immersed in a LiCl-KCl melt that contained 1 wt% lanthanum chloride—0.15 wt% uranium (IV) chloride. Scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDS) analysis revealed uranium particles approximately 0.5−1 μm with well-defined rectangular shapes; and with 20-60 times more uranium recovered on the surface of the electrode than lanthanum.
UR - https://www.scopus.com/pages/publications/85150392726
UR - https://www.mendeley.com/catalogue/fa1fb7a5-321a-3407-a7ee-2200ec6573fb/
U2 - 10.1149/1945-7111/acc09c
DO - 10.1149/1945-7111/acc09c
M3 - Article
AN - SCOPUS:85150392726
SN - 0013-4651
VL - 170
SP - 032504
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
IS - 3
M1 - 032504
ER -