Oxygen Transport in Microtubular Membranes La0.5Sr0.5Fe1– xNbxO3 – δ

Perovskite-like oxides based on lanthanum–strontium ferrites are considered to be promising electrode materials for use in various types of fuel cells, and the strategy of modifying these materials by partial substitution of iron with highly charged ferroactive cations has proved to be an efficient...

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Bibliographic Details
Published in:Russian journal of electrochemistry 2024, Vol.60 (1), p.57-61
Main Authors: Kovalev, I. V., Guskov, R. D., Sivtsev, V. P., Gongola, M. I., Popov, M. P., Nemudry, A. P.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Electrochemistry
Electrode materials
Fuel cells
Lanthanum
Membranes
Oxygen
Perovskites
Physical Chemistry
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Summary:Perovskite-like oxides based on lanthanum–strontium ferrites are considered to be promising electrode materials for use in various types of fuel cells, and the strategy of modifying these materials by partial substitution of iron with highly charged ferroactive cations has proved to be an efficient way to increase their chemical stability. In this work, the results of a study of the permeability of microtubular oxygen membranes based on La 0.5 Sr 0.5 Fe 1 – x Nb x O 3 – δ are presented for the first time. The activation energy of oxide bulk diffusion was found (20 ± 4 kJ/mol).
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193524010051