ProgramMaster Logo
Conference Tools for 2023 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2023 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry V
Presentation Title Oxide Ion Ceramic Sensor in Molten CaCl2 for Real Time Monitoring of the Direct Oxide Reduction Process
Author(s) Olivia Dale, Forest Felling, Michael Simpson
On-Site Speaker (Planned) Olivia Dale
Abstract Scope The direct oxide reduction (DOR) process is used to reduce actinide oxides into metals. Molten CaCl2 is commonly used as the electrolyte for this reaction. As the DOR reaction proceeds, CaO will accumulate in the salt and must be measured in real-time to know when the reaction has gone to completion. Open circuit potential (OCP) was tested in this study between tungsten working electrodes and Ni/NiO/MgO reference electrodes. As a solid piece of CaO slowly dissolved in the salt over several hours, the OCP was measured and steadily decreased from -0.25 V to a minimum plateau of -0.69 V. CaO concentrations were separately measured via sampling and acid-base titration. A plot of OCP versus concentration of CaO fits the Nernst Equation at the higher end of the CaO concentration range. Scanning electron microscopy showed that magnesia was stable in the salt system with little degradation to the membrane.
Proceedings Inclusion? Planned:
Keywords Ceramics, Electrometallurgy, Nuclear Materials

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

Questions about ProgramMaster? Contact programming@programmaster.org