2005年5月
Synthesis and oxygen permeability of the perovskite-type oxides in the La-Sr-Fe-Mn-O system
SOLID STATE IONICS
- ,
- ,
- ,
- ,
- ,
- 巻
- 176
- 号
- 15-16
- 開始ページ
- 1377
- 終了ページ
- 1381
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.ssi.2005.03.006
- 出版者・発行元
- ELSEVIER SCIENCE BV
The perovskite-type oxides, La1-xSrxFe0.5Mn0.5O3-d and Sr1-wFeyMn1-yO3-d, were synthesized and investigated regarding their electrical conductivity and oxygen permeability. La1-xSrxFe0.5Mn0.5O3-d for x = 0-0.5 exhibited semiconducting behavior below 400 degrees C and all the compounds exhibited metallic behavior above 500 degrees C, indicating electronic conduction. Increase of Sr content for La1-xSrxFe0.5Mn0.5O3-d and Fe3+/Mn4+ ratio for SrFeyMn1-yO3-d led to increase in oxygen vacancies in the perovskite lattice and enhanced oxygen permeability. Introduction of cation vacancies also enhanced the permeability of Sr1-wFe0.8Mn0.2O3-d and Sr0.8Fe0.8Mn0.2O3-d had the highest oxygen permeation rate of the compounds synthesized in this work. (c) 2005 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.ssi.2005.03.006
- ISSN : 0167-2738
- CiNii Articles ID : 80017466817
- Web of Science ID : WOS:000230094700006