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Synthesis and properties of Al-free Li7-xLa3Zr2-xTaxO12 garnet related oxides
https://repo.lib.tut.ac.jp/records/1351
https://repo.lib.tut.ac.jp/records/13517243f7f4-66dc-497e-8c20-b47ec0bd4a42
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ssi2014-0568 (1.5 MB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||||||||||||
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| 公開日 | 2014-06-25 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Synthesis and properties of Al-free Li7-xLa3Zr2-xTaxO12 garnet related oxides | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | Li7La3Zr2O12 garnet | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | cubic structure | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | Al-free | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | Ta substitution | |||||||||||||||
| キーワード | ||||||||||||||||
| 主題 | ionic conductivity | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ | conference paper | |||||||||||||||
| 著者 |
稲田, 亮史
× 稲田, 亮史
× 日下部, 晃司
× 田中, 貴之
× 工藤, 翔太
× 櫻井, 庸司
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| 著者(英） |
Inada, Ryoji
× Inada, Ryoji
× Kusakabe, Koji
× Tanaka, Takayuki
× Kudo, Shota
× Sakurai, Yoji
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | We investigated the properties of Al-free garnet related Li7La3Zr2O12 (LLZ) and Li7-xLa3Zr2-xTaxO12 (LLZTa) with Ta content x = 0.25, 0.5 and 1.0 synthesized by a solid state reaction method. It was confirmed that all Al-free LLZTa have the cubic garnet related structure, while Al-free LLZ without Ta substitution has tetragonal one. No other secondary phases were observed in all sintered samples. This indicates that partial substitution of Zr4+ by Ta5+ with higher valence increases Li-ion vacancy concentration in a garnet framework and stabilizes cubic garnet structure. The LLZTa grains are in good contact with each other although a certain amount of pores in the boundary area can be observed. Total (bulk + grain boundary) Li-ion conductivity at 27°C for all Al-free LLZTa were well above 10-4 Scm-1, while Al-free LLZ showed much lower room temperature conductivity of 1 × 10-5 Scm-1. The highest room temperature conductivity of 6.1 × 10-4 Scm-1 was obtained in Al-free LLZTa with x = 0.5, which is approximately 30−40% lower than the value in LLZTa (x = 0.5) with Al inclusion as previously reported. | |||||||||||||||
| 書誌情報 |
Solid State Ionics (Special issue Solid State Ionics 19 Proceedings of the 19th International Conference on Solid State Ionics. (SSI-19)) 巻 262, p. 568-572, 発行日 2014-09 |
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| 出版者 | ||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | 10.1016/j.ssi.2013.09.008 | |||||||||||||||
| 権利 | ||||||||||||||||
| 権利情報 | © 2014, Elsevier | |||||||||||||||
| 関連サイト | ||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||
| 関連識別子 | http://www.sciencedirect.com/science/article/pii/S0167273813004074 | |||||||||||||||
| 関連名称 | ScienceDirect | |||||||||||||||
| 著者版フラグ | ||||||||||||||||
| 出版タイプ | AM | |||||||||||||||
