Preparation of LaTiO<sub>2</sub>N Using Hydrothermally Synthesized La<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> as a Precursor and Urea as a Nitriding Agent
書誌事項
- タイトル別名
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- Preparation of LaTiO2N Using Hydrothermally Synthesized La2Ti2O7 as a Precursor and Urea as a Nitriding Agent
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.
収録刊行物
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- European Journal of Inorganic Chemistry
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European Journal of Inorganic Chemistry 2019 (9), 1257-1264, 2019-03-07
Wiley-VCH Verlag
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詳細情報 詳細情報について
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- CRID
- 1050859215937674752
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- NII論文ID
- 120006879598
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- ISSN
- 10990682
- 14341948
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- Web Site
- http://ir.lib.hiroshima-u.ac.jp/00049715
- https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fejic.201801526
- https://onlinelibrary.wiley.com/doi/pdf/10.1002/ejic.201801526
- https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ejic.201801526
- https://onlinelibrary.wiley.com/doi/am-pdf/10.1002%2Fejic.201801526
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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