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

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 o...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the Electrochemical Society 1999-11, Vol.146 (11)
Main Authors: Lantelme, F., Berghoute, Y.
Format: Article
Language:English
Subjects:
GADOLINIUM CHLORIDES
LANTHANUM CHLORIDES
LITHIUM CHLORIDES
MATERIALS SCIENCE
MOLTEN SALTS
POTASSIUM CHLORIDES
THERMODYNAMIC PROPERTIES
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0013-4651
1945-7111
DOI:10.1149/1.1392604