Thermodynamic Properties Determination in LiF-CaF2 Using Electrochemistry in High Temperature Fused Salts: Application to CeF3. (7th July 2017)

• Record Type: Journal Article
• Authors: Gibilaro, Mathieu; Massot, Laurent; Chamelot, Pierre
• Is Part Of: ECS transactions. Volume 77:Number 11(2017)
• Page Start: 921
• Page End: 932
• Publication Date: 2017-07-07
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/07711.0921ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : Combining thermodynamic database and electrochemical measurements, CeF3 thermodynamics properties were determined between 1113K and 1233K in LiF-CaF2 solution. First, standard potentials of CeF3 /Ce were calculated in different reference states: liquid and solid, and infinite dilution. Then activity coefficients of CeF3 were estimated in the different reference states and for different composition scales: molarity, molality and molar fraction. Finally, constants which interconnected the infinite dilution reference state and the solid and liquid reference states were evaluated.