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Revista de Chimie (Rev. Chim.), Year 2018, Volume 69, Issue 1, 112-115

https://doi.org/10.37358/RC.18.1.6054

Ana Maria Popescu, Virgil Constantin

Studies on Cerium Electrochemistry in High Temperature Ionic Liquids

Abstract:

The cathodic behavior of Ce3+ ions in LiF-NaF-BaF2, LiF-NaF-NaCl and NaCl-KCl molten salts at 730° C has been studied using different electrochemical techniques. The decomposition potential (Ed) and the cathodic overvoltage were determined by introducing NaCeF4 as electrochemical active species using steady-state potential-current curves recorded under galvanostatic conditions. The values of |Ed| were 1.85 V in LiF-NaF-BaF2, 2.114 V in LiF-NaF-NaCl and 2.538 V in NaCl-KCl, respectively. It was also found that the ohmic drop potential in melt is not dependent on NaCeF4 concentration and it rises as the current intensity increases. The Tafel slopes and other kinetic parameters were calculated on the assumption that the cathodic process consisted of direct discharge of Ce3+, with no solvent-solute interaction. In order to elucidate the mechanisn of cathodic process the cyclic voltammetry technique was finally used. From the evolution of the voltammograms we conclude that the electrochemical reduction of Ce3+ ion is actually a reversible process on the molybdenum electrode and cathodic reduction of Ce3+ takes place in one single step involving three electron exchange. Our study adds to the accumulating data and confirms available results of electrodeposition of metalic cerium from molten salts using NaCeF4 as solute.
Keywords:
cerium deposition; molten salts; lanthanides; NaCeF4; electrolysis

Issue: 2018, Volume 69, Issue 1
Pages: 112-115
Publication date: 15/02/2018
https://doi.org/10.37358/RC.18.1.6054
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
POPESCU, A.M., CONSTANTIN, V., Studies on Cerium Electrochemistry in High Temperature Ionic Liquids, Rev. Chim., 69(1), 2018, 112-115.

Vancouver
Popescu AM, Constantin V. Studies on Cerium Electrochemistry in High Temperature Ionic Liquids. Rev. Chim.[internet]. 2018 Jan;69(1):112-115. Available from: https://doi.org/10.37358/RC.18.1.6054


APA 6th edition
Popescu, A.M., Constantin, V. (2018). Studies on Cerium Electrochemistry in High Temperature Ionic Liquids. Revista de Chimie, 69(1), 112-115. https://doi.org/10.37358/RC.18.1.6054


Harvard
Popescu, A.M., Constantin, V. (2018). 'Studies on Cerium Electrochemistry in High Temperature Ionic Liquids', Revista de Chimie, 69(1), pp. 112-115. https://doi.org/10.37358/RC.18.1.6054


IEEE
A.M. Popescu, V. Constantin, "Studies on Cerium Electrochemistry in High Temperature Ionic Liquids". Revista de Chimie, vol. 69, no. 1, pp. 112-115, 2018. [online]. https://doi.org/10.37358/RC.18.1.6054


Text
Ana Maria Popescu, Virgil Constantin,
Studies on Cerium Electrochemistry in High Temperature Ionic Liquids,
Revista de Chimie,
Volume 69, Issue 1,
2018,
Pages 112-115,
ISSN 2668-8212,
https://doi.org/10.37358/RC.18.1.6054.
(https://revistadechimie.ro/Articles.asp?ID=6054)
Keywords: cerium deposition; molten salts; lanthanides; NaCeF4; electrolysis


RIS
TY - JOUR
T1 - Studies on Cerium Electrochemistry in High Temperature Ionic Liquids
A1 - Popescu, Ana Maria
A2 - Constantin, Virgil
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2018
VL - 69
IS - 1
SP - 112
EP - 115
UR - https://doi.org/10.37358/RC.18.1.6054
KW - cerium deposition; molten salts; lanthanides; NaCeF4; electrolysis
ER -


BibTex
@article{RevCh2018P112,
author = {Popescu Ana Maria and Constantin Virgil},
title = {Studies on Cerium Electrochemistry in High Temperature Ionic Liquids},
journal = {Revista de Chimie},
volume = {69},
number = {1},
pages = {112-115},
year = {2018},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.18.1.6054},
url = {https://revistadechimie.ro/Articles.asp?ID=6054}
}
 
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