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Low temperature synthesis of barium oxynitridosilicates using BaCN2 and SiO2
| Title: | Low temperature synthesis of barium oxynitridosilicates using BaCN2 and SiO2 |
| Authors: | Masubuchi, Yuji Browse this author →KAKEN DB | | Sada, Naoki Browse this author | | Kawahara, Yoshiteru Browse this author | | Arai, Kenji Browse this author | | Motohashi, Teruki Browse this author | | Higuchi, Mikio Browse this author →KAKEN DB |
| Issue Date: | 7-May-2021 |
| Publisher: | Royal Society of Chemistry |
| Journal Title: | Dalton transactions |
| Volume: | 50 |
| Issue: | 17 |
| Start Page: | 5883 |
| End Page: | 5889 |
| Publisher DOI: | 10.1039/d1dt00824b |
| Abstract: | Barium oxynitridosilicates, Ba3Si6O12N2 and Ba3Si6O9N4, were obtained from a mixture of BaCN2 and SiO2 at 800 degrees C, which is several hundred degrees lower than the temperature required in solid state reactions using BaCO3, SiO2 and Si3N4. The low-temperature formation mechanism was investigated by thermogravimetry analysis in conjunction with gas chromatography and mass spectroscopy. The phase ratio between the oxynitridosilicates was controlled by tuning the reaction temperature, duration, and atmosphere. Almost single-phase Ba3Si6O12N2 was obtained by reaction at 800 degrees C for 15 h under a N-2 atmosphere, but the product changed to Ba3Si6O9N4 after 50 h at 800 degrees C or by heating at 950 degrees C for 15 h. The photoluminescence properties of Eu-doped products obtained at 800 degrees C using a mixture of BaCN2 : Eu and SiO2 were investigated. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/84429 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鱒渕 友治
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