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Oxygen desorption properties of perovskite-type SrFe1−xCoxO3−δ: B-site mixing effect on the reduction properties of Fe and Co ions
http://hdl.handle.net/10126/0002000257
http://hdl.handle.net/10126/000200025700036323-e3f7-4bba-a4c6-5dfc53cafecc
| 名前 / ファイル | ライセンス | アクション |
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JSSC_312-123254.pdf (649 KB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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| 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
× Fujishiro, Fumito
× Oshima, Natsumi
× Sakuragi, Tokio
× Oishi, Masatsugu
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| 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 |
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| 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 | |||||||||||||
