Preparation of LaTiO2N Using Hydrothermally Synthesized La2Ti2O7 as a Precursor and Urea as a Nitriding Agent
European Journal of Inorganic Chemistry 2019 巻 9 号
1257-1264 頁
2019-03-07 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Preparation of LaTiO2N Using Hydrothermally Synthesized La2Ti2O7 as a Precursor and Urea as a Nitriding Agent
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| 作成者 |
Okada Ryoki
Masubuchi Yuji
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| 収録物名 |
European Journal of Inorganic Chemistry
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| 巻 | 2019 |
| 号 | 9 |
| 開始ページ | 1257 |
| 終了ページ | 1264 |
| 抄録 |
A facile method was successfully developed to prepare perovskite‐type metal oxynitrides, LaTiO2N, from La2Ti2O7 as a precursor in an atmosphere of N2. Urea was employed as a solid‐state nitriding agent, instead of gaseous NH3, to increase the safety of the reaction. The hydrothermally prepared La2Ti2O7 precursor had a nanosheet morphology and contained La(OH)3 as a by‐product. Through the optimization of reaction conditions including heat‐treatment temperature and content of urea, single‐phase LaTiO2N could be obtained. In addition, we revealed that the La(OH)3 present in the La2Ti2O7 precursor played an important role in the nitriding process using urea. La2O2CN2 was generated by the reaction of La(OH)3 with the thermal decomposition products of urea at the medium temperature range. This indicated that the NH3 gas released from the thermal decomposition of urea did not directly cause nitridation of the La2Ti2O7 precursor.
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| 著者キーワード |
Metal oxynitrides
Mixed‐anion compounds
Solid‐state reactions
Synthesis design
Perovskite phases
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| 内容記述 |
This work was supported by JSPS KAKENHI Grant Numbers JP16H06439, JP17H05483, and JP17H03392. This work was partly supported by the Center for Functional Nano Oxide at Hiroshima University.
アクセプト後にキーワードの変更あり。
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Wiley-VCH Verlag
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| 発行日 | 2019-03-07 |
| 権利情報 |
© 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
This is the peer reviewed version of the following article: Eur. J. Inorg. Chem. 2019, 1257-1264, which has been published in final form at https://doi.org/10.1002/ejic.201801526. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1434-1948
[ISSN] 1099-0682
[DOI] 10.1002/ejic.201801526
[DOI] https://doi.org/10.1002/ejic.201801526
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