Modifying the La0.6Sr0.4Co0.2Fe0.8O3 – δ Cathodic Material by Ferroactive Molybdenum Cation

Modifying the La0.6Sr0.4Co0.2Fe0.8O3 – δ Cathodic Material by Ferroactive Molybdenum Cation

It is shown that the substitution of 5% ferroactive molybdenum cations for iron to the La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 – δ (LSCF) structure leads to a considerable increase in the electric conductivity. Using the powder X-ray diffraction technique, the solubility limit of molybdenum in the structure...

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Veröffentlicht in:Russian journal of electrochemistry 2022-03, Vol.58 (3), p.163-167
Hauptverfasser: Voloshin, B. V., Koshevoi, E. I., Ulihin, A. S., Popov, M. P., Nemudry, A. P.
Format: Artikel
Sprache:eng
Schlagworte:
Cations
Chemistry
Chemistry and Materials Science
Electrical resistivity
Electrochemistry
Electrode materials
Molybdenum
Perovskites
Physical Chemistry
Solid oxide fuel cells
Transport properties
X ray powder diffraction
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Zusammenfassung:It is shown that the substitution of 5% ferroactive molybdenum cations for iron to the La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 – δ (LSCF) structure leads to a considerable increase in the electric conductivity. Using the powder X-ray diffraction technique, the solubility limit of molybdenum in the structure of rhombohedral perovskite is found. It is noted that the transport characteristics of perovskite with the La 0.6 Sr 0.4 Co 0.2 Fe 0.75 Mo 0.05 O 3 – δ (LSCFM5) composition are sufficient for using it as the cathode material in intermediate temperature solid oxide fuel cells (IT SOFCs).
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193522020112