| Autor: |
Shuji Oishi, Kunio Yubuta, Nobuyuki Zettsu, Katsuya Teshima, Hitoshi Onodera, Takeshi Kimijima |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
CrystEngComm. 17:3487-3492 |
| ISSN: |
1466-8033 |
| DOI: |
10.1039/c5ce00386e |
| Popis: |
Micrometer-sized Li7La3Zr2O12 crystals with well-developed facets were grown from a LiOH flux at 700 °C. Supersaturation-controlled crystallization driven by the cooling of a homogeneous hot solution with a Li/Zr ratio of 70 achieved one-step formation of cubic-phase Li7La3Zr2O12 that potentially exhibits high lithium-ion conductivity. Excess LiOH flux decreased the reaction temperature dramatically to 700 °C, lower than that of solid-state-reaction processes. The flux growth of the Li7La3Zr2O12 crystals in response to varying reaction conditions was studied systematically and indicated that the initial Li/Zr ratio and the holding temperature significantly affected the crystal phase, shape, and size. We further demonstrated Li7La3Zr2O12 crystal growth at 500 °C, beginning with La2Zr2O7 powders that dissolve readily in hot LiOH. This will be examined in greater depth in the near future. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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