Research output: Contribution to journal › Article › peer-review
Voltammetric study of PrF3:Sr2+ and NdF3:Ba2+ solid electrolytes. / Turaeva, M. S.; Tarasenkova, I. V.; Sorokin, N. I.; Urchukova, M. M.; Murin, I. V.
In: Russian Journal of Electrochemistry, Vol. 51, No. 5, 01.05.2015, p. 429-434.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Voltammetric study of PrF3:Sr2+ and NdF3:Ba2+ solid electrolytes
AU - Turaeva, M. S.
AU - Tarasenkova, I. V.
AU - Sorokin, N. I.
AU - Urchukova, M. M.
AU - Murin, I. V.
N1 - Publisher Copyright: © 2015, Pleiades Publishing, Ltd.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Studies of single crystals of nonstoichiometric fluorides of PrF3:Sr2+ and NdF3:Ba2+ in contact with a Pt electrode were carried out using the method of voltammetry with a linear potential sweep, chronoamperometry, and cyclic voltammetry. The reaction of gaseous oxygen reduction (GOR) at the PrF3:Sr2+/Pt interface was accompanied by appearance of mobile oxygen forms. The catalytic activity of PrF3:Sr2+ with respect to gaseous oxygen, same as CeF3:Sr2+, can be explained by variable valency of praseodymium and cerium fluoride, which creates opportunities for using them in oxygen and oxygen-containing gas sensors. The GOR reaction at the NdF3:Ba2+/Pt interface appeared as a result of anodic polarization. After charging at E = 3.2 V, the NdF3:Ba2+ single crystal was successfully used for fluorination of Sb and Ag. NdF3:Ba2+ is most promising in devices based on reactions with participation of mobile fluoride ion in solid electrolytes, particularly, for generation of gaseous fluorine.
AB - Studies of single crystals of nonstoichiometric fluorides of PrF3:Sr2+ and NdF3:Ba2+ in contact with a Pt electrode were carried out using the method of voltammetry with a linear potential sweep, chronoamperometry, and cyclic voltammetry. The reaction of gaseous oxygen reduction (GOR) at the PrF3:Sr2+/Pt interface was accompanied by appearance of mobile oxygen forms. The catalytic activity of PrF3:Sr2+ with respect to gaseous oxygen, same as CeF3:Sr2+, can be explained by variable valency of praseodymium and cerium fluoride, which creates opportunities for using them in oxygen and oxygen-containing gas sensors. The GOR reaction at the NdF3:Ba2+/Pt interface appeared as a result of anodic polarization. After charging at E = 3.2 V, the NdF3:Ba2+ single crystal was successfully used for fluorination of Sb and Ag. NdF3:Ba2+ is most promising in devices based on reactions with participation of mobile fluoride ion in solid electrolytes, particularly, for generation of gaseous fluorine.
KW - generation of gaseous fluorine
KW - nonstoichiometric praseodymium and neodymium fluorides
KW - oxygen reduction
KW - solid electrolytes
KW - voltammetry
UR - http://www.scopus.com/inward/record.url?scp=84930196334&partnerID=8YFLogxK
U2 - 10.1134/S1023193515050158
DO - 10.1134/S1023193515050158
M3 - Article
VL - 51
SP - 429
EP - 434
JO - Russian Journal of Electrochemistry
JF - Russian Journal of Electrochemistry
SN - 1023-1935
IS - 5
ER -
ID: 3936168