Selective extraction of Sm from LiCl-KCl molten salt into wasteforms via liquid bismuth

Electrochemical and kinetic studies on the electrolytic extraction of Gd on Bi electrode in LiCl–KCl melt

“…1a displays the cycle voltammetry (CV) curves of LiCl-KCl-BiCl 3 melt before and after the addition of GdCl 3 . Three pairs of reaction peaks (A/A 0 , C/C 0 and B/B 0 ) observed from the black curve are attributed to the reduction/oxidation of metal Li, metal Bi and Bi-Li intermetallic compound, 25,26 while three new reduction peaks (D, E and F) detected at À2.03, À1.59 and À1.29 V on the red curve are associated with the formation of metal Gd and Gd-Bi alloys. 27,28 To further investigate the generation of Gd-Bi alloys, CVs with various potential windows were conducted in LiCl-KCl-BiCl 3 -GdCl 3 melt.…”

Potentiometric study of the interaction of Sm3+ and O2− ions: thermodynamic properties of samarium compounds in molten NaCl–2CsCl eutectic

“…Samarium (Sm) is a fission product that mainly exists in molten salts in oxidation form Sm 3+ and Sm 2+ , has neutron toxicity and is difficult to separate from actinide elements. 16,17 Many research groups have investigated the electrochemical properties and extraction of Sm 3+ in the molten salt chloride system using various types of reactive electrodes (Al, 18,19 Zn, 20 Bi, 21,22 Sn, 23 Ni, 24,25 ). Our research group has also explored Sm in NaCl-2CsCl molten salts on Mo, Ga, Pb and mixed Ga-Pb electrodes for a range of relevant parameters, such as electrochemical reduction processes, kinetic and thermodynamic properties, and the separation and purification of Sm under suitable conditions.…”