Search Results - "Simpson, Michael F"

Corrosion of anode materials during direct electrolytic reduction of uranium oxide in molten LiCl-Li2O by Chamberlain, Jarom, Simpson Michael, F.

“…Direct electrolytic reduction of UO2 in LiCl-Li2O was performed with a platinum anode surrounded by a mesh shroud. The anode shroud was comprised of three…”
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Effect and measurement of residual water in CaCl2 intended for use as electrolyte in molten salt electrochemical processing by Faulkner, Emma, Monreal, Marisa, Jackson, Matt, Simpson, Michael F.

“…CaCl 2 has applications for electrochemical processing of nuclear materials. Thermal dehydration leads to formation of oxide ions, which are shown to react and…”
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Measurement of Solubility of Metallic Lithium Dissolved in Molten LiCl–Li2O by Burak, Adam J., Simpson, Michael F.

“…The solubility of lithium metal in molten LiCl–Li 2 O mixtures has been measured at various concentrations of Li 2 O ranging from 0 wt.% to 2.7 wt.% at a…”
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Investigation of the effects of uranium(III)-chloride concentration on voltammetry in molten LiCl-KCl eutectic with a glass sealed tungsten electrode by Rappleye, Devin, Teaford, Kevin, Simpson, Michael F.

“…[Display omitted] One of the major sources of error for electroanalytical measurements in high-temperature molten salts is from the measurement of the working…”
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Projected Salt Waste Production from a Commercial Pyroprocessing Facility by Simpson, Michael F.

“…Pyroprocessing of used nuclear fuel inevitably produces salt waste from electrorefining and/or oxide reduction unit operations. Various process design…”
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Development of a scalable method to chlorinate UO2 to UCl3 using ZrCl4 by Chamberlain, Jarom, Simpson, Michael F.

“…This paper reports work to further develop a process to chlorinate uranium oxide and cause it to dissolve in a molten salt. The method was first reported by…”
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Potentiometric Measurement of Activity of Rare Earth Chlorides (La, Gd, Ce, Nd) in LiCl-KCl Eutectic Salt by Bagri, Prashant, Simpson, Michael F.

“…In this paper, the thermodynamic activity of two lanthanide chlorides (CeCl3 and NdCl3) in molten LiCl-KCl eutectic salt measured using open circuit…”
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Determination of activity coefficient of lanthanum chloride in molten LiCl-KCl eutectic salt as a function of cesium chloride and lanthanum chloride concentrations using electromotive force measurements by Bagri, Prashant, Simpson, Michael F.

“…The thermodynamic behavior of lanthanides in molten salt systems is of significant scientific interest for the spent fuel reprocessing of Generation IV…”
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Uncertainty studies of real anode surface area in computational analysis for molten salt electrorefining by Choi, Sungyeol, Park, Jaeyeong, Hoover, Robert O., Phongikaroon, Supathorn, Simpson, Michael F., Kim, Kwang-Rag, Hwang, Il Soon

“…► Numerical electrochemo-fluid modeling of pyrochemical electrorefining in cross comparison with 2D and 3D analysis models. ► Benchmark study on cell potential…”
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Nuclear Fuel Reprocessing Technologies and Commercialization by Simpson, Michael F.

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Redox potential control in molten salt systems for corrosion mitigation by Zhang, Jinsuo, Forsberg, Charles W., Simpson, Michael F., Guo, Shaoqiang, Lam, Stephen T., Scarlat, Raluca O., Carotti, Francesco, Chan, Kevin J., Singh, Preet M., Doniger, William, Sridharan, Kumar, Keiser, James R.

“…In a molten salt nuclear reactor system, the redox potential must be controlled for mitigating corrosion of structural materials. The paper presented a…”
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Electrochemical measurement of high concentrations of UCl3 and GdCl3 in molten LiCl-KCl eutectic by Zhang, Chao, Wallace, Jaron, Simpson, Michael F.

“…Electrochemical methods have been developed to measure metal ion concentrations in spent nuclear fuel electrorefiner by correlating concentration with current…”
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Chlorination of Li2O and uranium metal in molten LiCl–KCl using NH4Cl by Rood, Nathan, Andersen, Collin, Carlson, Krista, Simpson, Michael F.

“…This paper reports on a new approach to chlorinating molten salts using vaporized NH 4 Cl. In separate experiments, chlorination of dissolved Li 2 O and…”
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Fabrication of high-density and translucent Al-containing garnet, Li7−xLa3Zr2−xTaxO12 (LLZTO) solid-state electrolyte by pressure filtration and sintering by Lei, Chong, Shetty, Dinesh K., Simpson, Michael F., Virkar, Anil V.

“…Garnet type LLZTO ceramic oxide is a promising solid-state electrolyte for use in Li-ion batteries because it has good chemical stability, adequate mechanical…”
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Gas-solid reaction pathway for chlorination of rare earth and actinide metals using hydrogen and chlorine gas by Okabe, Parker, Newton, Matthew, Rappleye, Devin, Simpson, Michael F.

“…Hydriding and chlorination of buttons of metallic cerium have been tested as a head-end step to separating metal impurities from actinides. The objective was…”
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Voltammetric Analysis of Mixtures of Molten Eutectic LiCl-KCl Containing LaCl3 and ThCl4 for Concentration and Diffusion Coefficient Measurement by Wang, Zhong-hang, Rappleye, Devin, Simpson, Michael F.

“…Several electrochemical techniques, including cyclic voltammetry (CV), chronopotentiometry-open circuit potential (CP-OCP), chronoamperometry (CA) and normal…”
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Time dependent chlorination of CeO2, La2O3 and Nd2O3 by ZrCl4 dissolved in eutectic LiCl–KCl by Chamberlain, Jarom, Taunque, Asmat, Simpson, Michael F.

“…Partial chlorination of CeO 2 , La 2 O 3 , and Nd 2 O 3 was achieved using ZrCl 4 dissolved in molten LiCl–KCl at 450 °C over a period of 4–5 h. ZrCl 4 was…”
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Development of metallic nuclear material purification process via simultaneous chlorination and volatilization by Okabe, Parker, Rappleye, Devin, Newton, Matthew, Simpson, Michael F.

“…A purification process involving simultaneous chlorination and volatilization is reported using aluminum, iron, gallium, and uranium separation from cerium…”
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Identification, measurement, and mitigation of key impurities in LiCl-Li2O used for direct electrolytic reduction of UO2 by Gonzalez, Mario, Burak, Adam, Guo, Shaoqiang, Simpson, Michael F.

“…Direct electrolytic reduction (DER) of UO2 utilizes a molten LiCl-Li2O electrolyte operating at 650 °C.Productive processes at the cathode are UO2 and Li2O…”
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Equilibrium model for ion exchange between multivalent cations and zeolite-A in a molten salt by Phongikaroon, Supathorn, Simpson, Michael F.

“…A two‐site equilibrium model that previously only accommodated monovalent cations has been extended to include divalent and trivalent cations for ion exchange…”
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