Ionic conductivity of the molten systems (LiF-CaF2)eut-NdF3, (LiF-NaF)eut-NdF3, (NaF-CaF2)eut-NdF3 and (LiF-MgF2)eut-NdF3

被引：3
作者：
Krishnan, Dhiya [1 ]
Korenko, Michal [1 ,2 ,3 ]
Simko, Frantisek [1 ,4 ]
Ambrova, Marta [5 ]
Szatmary, Lorant [6 ]
Rakhmatullin, Aydar [3 ]
机构：
[1] Slovak Acad Sci, Inst Inorgan Chem, Dubravska Cesta 9, Bratislava 84536, Slovakia
[2] Loire Valley Inst Adv Studies, 1 Rue Dupanloup, F-45000 Orleans, France
[3] CNRS, CEMHTI Condit Extremes&Materiaux: Haute Temperatur, 1D Ave Rech Sci CS 90055, F-45071 Orleans, France
[4] Slovak Acad Sci, Ctr Excellence Adv Mat Applicat CEMEA, Dubravska Cesta 5807-9, Bratislava 84511, Slovakia
[5] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Radlinskeho 9, Bratislava 81237, Slovakia
[6] UJV Rez AS, Fuel Cycle Chem Dept, Div Radioact Waste & Decommissioning, Husinec Rez 25068, Czech Republic
来源：
IONICS | 2023年 / 29卷 / 12期
关键词：
Electrical/ionic conductivity; Molten salts electrolysis; Rare earth elements (REEs); Neodymium; Molten salt reactor; Electrometallurgy; TUBE-TYPE CELL; ELECTRICAL-CONDUCTIVITY; VOLUME PROPERTIES; TERNARY; ND; LN; ALKALI; BINARY; LA; GD;
D O I：
10.1007/s11581-023-05232-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Experimental measurements were made to assess the electrical conductivity as a function of temperature and NdF3 concentration (0-20 mol %) of molten systems of (LiF-CaF2)(eut)-NdF3, (LiF-NaF)(eut)-NdF3, (NaF-CaF2)(eut)-NdF(3 )and (LiF-MgF2)(eut)-NdF3. The experiment used an altering current impedance spectroscopy technique with a platinum-rhodium electrode positioned in a pyrolytic BN tube and graphite a crucible/counter electrode. The conductivity of all systems under study increased with rising temperatures and decreasing NdF3 concentrations. The Arrhenius equation and linear regression have both been used to describe the experimental data. The results of the ionic conductivity for the temperature 850 degrees C and NdF3 concentrations 0, 10 and 15 mol %, respectively, can be compared as follows: the conductivity of the molten system of (LiF-CaF2)(eut)-NdF(3 )was determined to be 6.10, 5.95 and 5.10 S.cm(-1), the results for the system (LiF-NaF)(eut)-NdF3 were 6.16, 5.56 and 4.13 S.cm(-1), the results for the system (NaF-CaF2)(eut)-NdF3 were 3.78, 3.56 and 2.32 S.cm(-1), and finally, the results for the system (LiF-MgF2)(eut)-NdF3 were determined to be for the same temperature as 5.35, 4.79 and 4.14 S.cm(-1), respectively.
引用
收藏
页码：5139 / 5146
页数：8
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