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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry III
Presentation Title Electrochemistry in Molten 2LiF-BeF2 Salt for the Fluoride Salt-Cooled High Temperature Reactor Applications
Author(s) William Doniger, Thomas Chrobak, Brian Kelleher, Kieran Dolan, Guoping Cao, Mark Anderson, Kumar Sridharan
On-Site Speaker (Planned) William Doniger
Abstract Scope A dynamic beryllium reference electrode has been developed for in-situ study of redox potential in molten LiF-BeF2 (66-34 mol%) (FLiBe) salt, a candidate reactor coolant for the fluoride salt-cooled high temperature reactor (FHR) concept. Measurement and control of redox potential can mitigate corrosion and enable more common structural materials to be used in FHR. This three electrode probe has demonstrated good reproducibility of the salt redox potential with an error of 4 mV at 500ᵒC. The response of the probe to changes in salt chemistry was investigated by simulating oxidizing corrosion processes. The changes in redox potential were measured by progressively increasing concentrations of fluorides of nickel, iron, and chromium, corrosion products of common structural materials. The reduction potentials of the metal impurity fluorides were measured in solutions containing approximately 250 ppm of a single impurity using cyclic voltammetry. This approach is extended to study electrochemical purification of molten FLiBe.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Effects of Oxide Precursor Preparation Parameters on the Electrochemical Reduction of Tantalum Pentoxide in Calcium Chloride Melt
Electrochemical and Thermodynamic Properties of Gadolinium Chloride in LiCl-KCl Eutectic Salt
Electrochemical Behavior of Sn/SnCl2 Cathode in Na | NaCl-AlCl3-SnCl2 | Sn Cell
Electrochemical Deposition of Barium into Liquid Bismuth from BaCl2-LiCl-CaCl2-NaCl Electrolyte
Electrochemical Synthesis of TaC in Molten Salt
Electrochemical Techniques for Nuclear Safeguards in Molten Salt
Electrochemistry in Molten 2LiF-BeF2 Salt for the Fluoride Salt-Cooled High Temperature Reactor Applications
Impurity Removal from Titanium Oxycarbide
Initial Operation of Kg-Scale Electrolytic Reduction and Salt Distillation Equipment for the Pyroprocessing of Uranium Oxide in a Hot Cell
Molten Flux Design for Solid Oxide Membrane Based Electrolysis of Si from Silica
Optimized Voltammetry Methods for Measuring Concentration of Multiple Rare Earths and Actinides in Molten LiCl-KCl
Thermal Imaging Furnace Technique for Ultra-high Temperature Electrochemical Measurements
Thermochemical Properties of Barium-Bismuth Alloys Determined by Emf Measurements
Thorium and Uranium Electrodeposition from Molten LiCl-KCl onto Alpha Spectroscopy Semiconductor Detector Surface
Zirconium Management in the Mk-IV Electrorefiner

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