Environmentally Benign Synthesis and Color Tuning of Strontium–Tantalum Perovskite Oxynitride and Its Solid Solutions

Inorganic Chemistry 60 巻 7 号 4852-4859 頁 2021-02-25 発行
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タイトル ( eng )
Environmentally Benign Synthesis and Color Tuning of Strontium–Tantalum Perovskite Oxynitride and Its Solid Solutions
作成者
Sakata Takuya
Yoshiyuki Risa
Okada Ryoki
Urushidani Sohta
Koyama Kyohei
Masubuchi Yuji
収録物名
Inorganic Chemistry
60
7
開始ページ 4852
終了ページ 4859
抄録
A facile method was successfully developed to prepare strontium–tantalum perovskite oxynitride, SrTaO2N, and its solid solutions. Urea was employed as a solid nitriding agent to eliminate the use of toxic NH3 gas. In addition, utilization of sol–gel-derived Ta2O5 gel as a Ta precursor allowed for completion of nitridation within a shorter period and at a lower calcination temperature compared with the conventional ammonolysis process. Optimization of the reaction conditions, such as the urea content, allowed for the production of solid solutions of SrTaO2N and Sr1.4Ta0.6O2.9. The products exhibited optical absorption and chromatic colors because of the narrower band gaps of oxynitrides compared with those of oxides. The O/N ratios of the solid solutions were easily adjusted by varying the amount of urea in the mixture of precursors. As a result, the colors of the products ranged from yellow to brown. The nitridation process and products developed in this study are interesting environmentally benign alternatives to conventional inorganic pigments.
内容記述
This work was supported by JSPS KAKENHI (Grant Numbers JP16H06439, JP17H03392, JP17H05483, JP18K19132, JP19H04699, and JP20H02439).
言語
英語
資源タイプ 学術雑誌論文
出版者
American Chemical Society
発行日 2021-02-25
権利情報
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.0c03758.
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。
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] 0020-1669
[ISSN] 1520-510X
[DOI] 10.1021/acs.inorgchem.0c03758
[DOI] https://doi.org/10.1021/acs.inorgchem.0c03758
備考 The full-text file will be made open to the public on 25 Feb 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'