|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||High Temperature Electrochemistry IV
||Electrochemical properties of liquid Nd-Bi alloys in LiCl-KCl-NdCl3 electrolyte
||Sanghyeok Im, Timothy Lichtenstein, Stephanie Castro Baldivieso, Hojong Kim
|On-Site Speaker (Planned)
Electrochemical properties of liquid Bi electrode were investigated in LiCl-KCl-NdCl3 at 500-700 °C using a three-electrode configuration: a two-phase Nd-Sn alloy as the reference electrode and a liquid Nd-Bi alloy as the counter electrode. The electrode potential of the liquid Bi was measured during Nd deposition/removal cycles at various current densities to estimate round-trip coulombic efficiencies and to characterize current-dependent overpotentials. The overpotential measurements were corroborated by electrochemical impedance spectroscopy (EIS) to study interfacial charge transfer and mass transport kinetics of liquid Nd-Bi alloy electrodes during electrolysis. After electrodeposition experiments, the composition of the electrode was analyzed by inductively-coupled plasma atomic emission spectroscopy (ICP-AES), and the recovery efficiency of Nd metal was estimated according to Faraday's law.