Electrochemical studies on cerium(Ⅲ) in molten fluoride mixtures  

作　　者：VIRGIL CONSTANTIN ANA-MARIA POPESCU MIRCEA OLTEANU 

机构地区：[1]Romanian Academy,Institute of Physical Chemistry "Ilie Murgulescu",Department of Molten Salts Splaiul Independentei 202,Bucharest-Romania

出　　处：《Journal of Rare Earths》2010年第3期428-434,共7页稀土学报（英文版）

基　　金：supported by the a NATO grant nr.004-005/2002

摘　　要：This study aims to determine the principal electrochemical characteristics of the electrodeposition of cerium metal from molten fluoride systems.The cathodic process of Ce3+ ions in LiF-NaF and LiF-NaF-CaF2 molten salts was studied using electrochemical techniques as steady state and cyclic voltammetry methods.The decomposition potential(Ed) and the overvoltage(η) were determined for NaCeF4 using current-potential curves under galvanostatic conditions.The Ed was found to be 2.025 V in LiF-NaF and 2.045 V in...This study aims to determine the principal electrochemical characteristics of the electrodeposition of cerium metal from molten fluoride systems.The cathodic process of Ce3+ ions in LiF-NaF and LiF-NaF-CaF2 molten salts was studied using electrochemical techniques as steady state and cyclic voltammetry methods.The decomposition potential(Ed) and the overvoltage(η) were determined for NaCeF4 using current-potential curves under galvanostatic conditions.The Ed was found to be 2.025 V in LiF-NaF and 2.045 V in...

关 键 词：CERIUM molten salts LANTHANIDES NaCeF4 ELECTROLYSIS cyclic voltammetry 

分 类 号：TG115[金属学及工艺—物理冶金]