Electrochemical studies of LaCl{sub 3} and GdCl{sub 3} dissolved in fused LiCl-KCl

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1392604· OSTI ID:20003948

Lantelme, F; Berghoute, Y

Molten systems are important as reaction media for the winning of strong oxidation or reducing elements such as fluorine, alkaline, and alkaline earth metals and aluminum. Recently, fused salt electrochemistry has been used for the preparation of refractory metals opening the way to the deposition of metals in solid state. The thermodynamic properties of solutions of lanthanum or gadolinium chlorides in mixed molten LiCl-KCl were determined by electromagnetic force (emf) measurements of LaCl{sub 3} or GdCl{sub 3} formation cells. The temperature dependence of the emf between 380 and 590 C was used to calculate the Gibbs energy and the enthalpy of formation of dissolved LaCl{sub 3} or GdCl{sub 3}. The electrode processes of La(III) and Gd(III) reduced on a tungsten electrode were investigated by cyclic voltammetry and chronopotentiometry.

• Research Organization: Univ. Pierre et Marie Curie, Paris (FR)
• OSTI ID: 20003948
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 11 Vol. 146; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GADOLINIUM CHLORIDES
LANTHANUM CHLORIDES
LITHIUM CHLORIDES
MOLTEN SALTS
POTASSIUM CHLORIDES
THERMODYNAMIC PROPERTIES