Enviar artigo por via de e-mail Study of the oxygen exchange kinetics in the nonstoichiometric oxide SrFeO3–δ under isostoichiometric conditions using the oxygen partial pressure relaxation technique
- Autores: Bychkov S.F.1, Popov M.P.1, Nemudry A.P.1,2
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Afiliações:
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
- National Research Novosibirsk State University
- Edição: Volume 57, Nº 5 (2016)
- Páginas: 697-703
- Seção: Article
- URL: https://journals.rcsi.science/0023-1584/article/view/162744
- DOI: https://doi.org/10.1134/S0023158416050050
- ID: 162744
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Resumo
The kinetics of oxygen exchange in the nonstoichiometric strontium ferrite SrFeO3–δ with the structure of cubic perovskite was studied by the oxygen partial pressure relaxation technique in the isostoichiometric regime at temperatures of 500–900°C in a range of δ from 0.24 to 0.44. An increase in the oxygen nonstoichiometry δ was accompanied by a decrease in the rate of sample relaxation and by an increase in the apparent activation energy of oxygen exchange.
Sobre autores
S. Bychkov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
Email: nemudry@solid.nsc.ru
Rússia, Novosibirsk, 630128
M. Popov
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch
Email: nemudry@solid.nsc.ru
Rússia, Novosibirsk, 630128
A. Nemudry
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch; National Research Novosibirsk State University
Autor responsável pela correspondência
Email: nemudry@solid.nsc.ru
Rússia, Novosibirsk, 630128; Novosibirsk, 630090
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