Russian Journal of Electrochemistry, volume 56, issue 2, pages 100-109
New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ
Publication type: Journal Article
Publication date: 2020-02-01
Journal:
Russian Journal of Electrochemistry
Quartile SCImago
Q3
Quartile WOS
Q4
Impact factor: 1.2
ISSN: 10231935, 16083342
Electrochemistry
Abstract
The conductivity of perovskites La0.3Ca0.7Fe0.6Mg0.175Mo0.225O3 – δ (LCF6) and La0.3Ca0.7Fe0.5Mg0.25Mo0.25O3 – δ (LCF5) is studied in the temperature interval of 573–1173 К at varied oxygen partial pressure. It is found that when going from air to the reductive atmosphere (8% Ar/H2), the conductivity of both samples at 1173 K increases from 4.6 to 25 S/cm for LCF6 and from 0.5 to 10 S/cm for LCF5. For LCF5, the conductivity is shown to be virtually independent of the oxygen partial pressure throughout the studied intervals of temperature and partial pressure, whereas for LCF6 two regions are observed. The conductivity of LCF5 remains constant at the cyclic change of the atmosphere from air to the reductive atmosphere and back. The method of impedance spectroscopy is used for studying the electrochemical behavior in air of the porous electrode based on (La,Ca)(Fe,Mg,Mo)O3 – δ deposited on the solid electrolyte of Ce0.8Gd0.2O1.9 (GDC). The polarization resistance of the electrode/electrolyte interface (Rη) is found to be 2.7 and 3.6 Ω cm2 for electrodes of LCF5 and LCF6, respectively, at 1173 K. The partial substitution of Co for Fe allows the Rη value of La0.3Ca0.7Fe0.45Co0.05Mg0.25Mo0.25O3 – δ and La0.3Ca0.7Fe0.55Co0.05Mg0.175Mo0.225O3 – δ to be decreased to ∼1.2 Ω cm2. Moreover, these materials demonstrate the CTE values close to that of GDC and also exhibit the acceptable conductivity in both air and reductive atmosphere and, hence, can be recommended for using as the electrode material in symmetrical solid-oxide fuel cells.
Citations by journals
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Russian Chemical Reviews
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Russian Chemical Reviews
2 publications, 66.67%
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Russian Journal of Electrochemistry
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Russian Journal of Electrochemistry
1 publication, 33.33%
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Citations by publishers
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
2 publications, 66.67%
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Pleiades Publishing
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Pleiades Publishing
1 publication, 33.33%
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1
2
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- We do not take into account publications that without a DOI.
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Morozov A. et al. New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ // Russian Journal of Electrochemistry. 2020. Vol. 56. No. 2. pp. 100-109.
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Morozov A., Istomin S., Strebkov D. A., Lyskov N. V., Abdullaev M. M., ANTIPOV E. V. New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ // Russian Journal of Electrochemistry. 2020. Vol. 56. No. 2. pp. 100-109.
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TY - JOUR
DO - 10.1134/S1023193520020111
UR - https://doi.org/10.1134%2FS1023193520020111
TI - New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ
T2 - Russian Journal of Electrochemistry
AU - Morozov, A.V.
AU - Istomin, S.Ya.
AU - Strebkov, D A
AU - Lyskov, N V
AU - Abdullaev, M. M.
AU - ANTIPOV, E. V.
PY - 2020
DA - 2020/02/01 00:00:00
PB - Pleiades Publishing
SP - 100-109
IS - 2
VL - 56
SN - 1023-1935
SN - 1608-3342
ER -
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@article{2020_Morozov,
author = {A.V. Morozov and S.Ya. Istomin and D A Strebkov and N V Lyskov and M. M. Abdullaev and E. V. ANTIPOV},
title = {New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ},
journal = {Russian Journal of Electrochemistry},
year = {2020},
volume = {56},
publisher = {Pleiades Publishing},
month = {feb},
url = {https://doi.org/10.1134%2FS1023193520020111},
number = {2},
pages = {100--109},
doi = {10.1134/S1023193520020111}
}
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Morozov, A.V., et al. “New Electrode Materials for Symmetrical Solid Oxide Fuel Cells Based on Perovskites (La,Ca)(Fe,Co,Mg,Mo)O3 – δ.” Russian Journal of Electrochemistry, vol. 56, no. 2, Feb. 2020, pp. 100-109. https://doi.org/10.1134%2FS1023193520020111.