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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium High Temperature Electrochemistry III
Presentation Title Thermochemical Properties of Barium-Bismuth Alloys Determined by Emf Measurements
Author(s) Timothy Lichtenstein, Nathan Smith, Hojong Kim
On-Site Speaker (Planned) Timothy Lichtenstein
Abstract Scope We present on the thermochemical properties of barium-bismuth alloys determined by emf measurements at temperatures between 450oC and 800oC using binary CaF2-BaF2 (97-3 mol%) electrolyte. Liquid bismuth electrodes exhibit unique electrochemical properties compared to conventional solid-state electrodes due to strong chemical interactions with alkali/alkaline-earth elements in the liquid state. These liquid metal electrodes have been demonstrated to change the deposition potentials of alkali/alkaline-earth elements, to have a high coulombic efficiencies (>98%), and to selectively deposit alkali/alkaline-earth metals. With alkali/alkaline-earth elements making up a substantial portion of the heat density of nuclear waste, we are looking at using liquid metals to separate barium, strontium and cesium out of chloride salts used to process spent nuclear fuels. In order to understand the unique deposition behavior of these alkali/alkaline-earth elements into liquid bismuth, it is necessary to determine the thermochemical properties of these alloys.
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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