| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-06-10 |
| タイトル |
|
|
タイトル |
Oxygen desorption properties of perovskite-type SrFe1−xCoxO3−δ: B-site mixing effect on the reduction properties of Fe and Co ions |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Oxygen storage materials |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Perovskite-type oxides |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
B-site mixing effect |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Thermogravimetry |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
X-ray absorption spectroscopy |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
Fujishiro, Fumito
Oshima, Natsumi
Sakuragi, Tokio
Oishi, Masatsugu
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
To understand the B-site mixing effect in perovskite-type SrFe1−xCoxO3−δ, we evaluated the relationship between the oxygen desorption properties and the reduction behavior of Fe and Co ions using thermogravimetry and in-situ X-ray absorption spectroscopy. The valence states of Fe and Co ions were estimated to be 3.56+ and 3.27+, respectively, which remained constant with changes in composition. Maximum oxygen desorption occurred at x = 0.2 below 800 °C. As temperature was increased and oxygen was released, a relationship was observed between the valence and coordination number changes of each B-site ion; these changes were more pronounced for the Fe ions than for the Co ions. In SrFe1−xCoxO3−δ samples, oxygen adjacent to Fe ions was released more readily than oxygen adjacent to Co ions. This conclusion is supported by the electronic states of the two B-site ions. These results are important for the design of new oxygen storage materials. |
|
言語 |
en |
| 書誌情報 |
en : Journal of Solid State Chemistry
巻 312,
p. 123254,
発行日 2022-05-26
|
| ISSN |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0022-4596 |
| DOI |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.jssc.2022.123254 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
© 2022 Elsevier Inc. All rights reserved. |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
JSSC_312-123254.pdf (649 KB)
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