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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry V
Presentation Title Study of Potentiometry for Monitoring Activity of GdCl3 in Molten LiCl-KCl Salt
Author(s) Guoping Cao, Steven Herrmann, Guy Fredrickson, Robert Hoover
On-Site Speaker (Planned) Guoping Cao
Abstract Scope In pyroprocessing spent nuclear fuels by electrorefining in molten LiCl-KCl salt, it is desired to monitor in real time the UCl3 concentration in the salt for safeguards purposes. Current chemical analysis of the highly radioactive salt for electrorefining by an inductively coupled plasma technique is inconvenient and usually time-consuming in generating the salt composition results. In this paper, we evaluated whether a simple potentiometry approach can be used for real-time monitoring the concentration of GdCl3, which was used as a surrogate for UCl3, in LiCl-KCl-GdCl3 salt by measuring the open circuit potential of a Gd metal electrode with respect to a Ag/AgCl reference electrode (RE) when GdCl3 salt was incrementally added to the LiCl-KCl salt. Additions of LaCl3, CeCl3 and NdCl3 salts were used for evaluating the effects of other chloride salts on the selectivity of the Gd metal electrode versus Ag/AgCl RE.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Revised High Temperature Synthesis of UCl3 via Reaction of U with FeCl2
Blind Identification and Quantification of Analytes in Molten LiCl-KCl Eutectic
Chloro-aluminate Species Distribution Correlation with Electrical Conductivity of 1-ethyl-3-methyl Imidazolium Chloride (EMIC)-Aluminum Chloride (AlCl3) System
Cyclic Voltammetry for Real-time Oxide Ion Concentration Measurements of a Molten CaCl2
Electrochemical Behavior of Bismuth in molten LiCl-KCl-CaCl2
Electrochemical Properties of Ca-Sb Metal Battery with a Molten Chloride Electrolyte
Electrochemical Reduction of Nd2O3+Fe2O3 Mixed Oxide Precursors in Calcium Chloride Melt
Evaluating the Effects of Mixed Cation Molten Salt Electrolytes within the Li-Sb-Sn Liquid Metal Battery System
Evaluating the Electrochemical Recovery of Gd Using a Reactive Liquid Bi Electrode
Formation of Carbon Layer on Ni and Mo Through Electrochemical Reduction of Carbonate Ions in Molten LiCl
Numerical Modelling and Phase Field Modelling of Silicon Electrodeposition for Solar Cells at High Temperatures using Molten Salts
On the Separation of Niobium and Tantalum Metals via Molten Sulfide Electrolysis
Optimisation of the Anodic and Cathodic Current Densities during Nd Electrowinning Process
Oxide Ion Ceramic Sensor in Molten CaCl2 for Real Time Monitoring of the Direct Oxide Reduction Process
Relative Performance of Platinum, Iridium, and Ruthenium as Oxygen-Evolving Anodes during the Electrolytic Reduction of Uranium Oxide in Molten LiCl-Li2O
Study of Potentiometry for Monitoring Activity of GdCl3 in Molten LiCl-KCl Salt
The Demonstration and Optimization of Thin-cell Electrochemical Measurements in Molten LiCl-KCl Eutectic
The Impact of Moisture on the Electrochemical Behavior of Molten Calcium Chloride
Thermodynamic Properties of Nd-Fe Alloys via EMF Measurements in Molten Salts

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