Research output: Contribution to journal › Article › peer-review
Effect of the electrode material on the reduction of La3+ and Ce3+ in fluoride-conducting solid electrolytes. / Turaeva, M. S.; Kot, S. A.; Urchukova, M. M.; Murin, I. V.
In: Russian Journal of Electrochemistry, Vol. 41, No. 5, 05.2005, p. 582-591.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of the electrode material on the reduction of La3+ and Ce3+ in fluoride-conducting solid electrolytes
AU - Turaeva, M. S.
AU - Kot, S. A.
AU - Urchukova, M. M.
AU - Murin, I. V.
PY - 2005/5
Y1 - 2005/5
N2 - The reduction of immobile cations La3+ and Ce3+ in fluoride-conducting solid electrolytes (FSE) LaF3 (Eu2+ 0.8 mol %), LaF3 (Sr2+ 5 mol %), and CeF3 (Sr2+ 5 mol %) in contact with Ag, Bi, Si, La, Ce, and Sm working electrodes is studied by chronoamperometry and voltammetry with linear potential scan. Discovered is linear dependence of initial segments of potentiostatic transients of cathodic current on t 1/2 at FSE interfaces with Ag, Bi, La, Ce, and Sm. The dependence is due to diffusion-controlled instantaneous nucleation of Ln and Ce. The La3+ and Ce3+ reduction at the FSE/Ag interface is reversible in a narrow region. The reduction and oxidation of La3+ and Ce3+ (cations of the FSE rigid lattice) at the FSE/Me (Me = La, Ce and Sm, Bi, Si) interface is irreversible and involves a chemical reaction.
AB - The reduction of immobile cations La3+ and Ce3+ in fluoride-conducting solid electrolytes (FSE) LaF3 (Eu2+ 0.8 mol %), LaF3 (Sr2+ 5 mol %), and CeF3 (Sr2+ 5 mol %) in contact with Ag, Bi, Si, La, Ce, and Sm working electrodes is studied by chronoamperometry and voltammetry with linear potential scan. Discovered is linear dependence of initial segments of potentiostatic transients of cathodic current on t 1/2 at FSE interfaces with Ag, Bi, La, Ce, and Sm. The dependence is due to diffusion-controlled instantaneous nucleation of Ln and Ce. The La3+ and Ce3+ reduction at the FSE/Ag interface is reversible in a narrow region. The reduction and oxidation of La3+ and Ce3+ (cations of the FSE rigid lattice) at the FSE/Me (Me = La, Ce and Sm, Bi, Si) interface is irreversible and involves a chemical reaction.
KW - Fluoride-conducting solid electrolyte
KW - Potentiostatic current transient
KW - Voltammetry
UR - http://www.scopus.com/inward/record.url?scp=21644479037&partnerID=8YFLogxK
U2 - 10.1007/s11175-005-0110-3
DO - 10.1007/s11175-005-0110-3
M3 - Article
AN - SCOPUS:21644479037
VL - 41
SP - 582
EP - 591
JO - Russian Journal of Electrochemistry
JF - Russian Journal of Electrochemistry
SN - 1023-1935
IS - 5
ER -
ID: 88002008