| LaF3纳米线的低温溶剂热法制备及形成机理 |
| LaF3 Nanowires: Low Temperature Solvothermal Synthesis and Growth Mechanism |
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| 摘要: |
| 关键词: LaF3 溶剂热法 纳米线 |
| 基金项目: |
| Abstract: LaF3 nanowires with high aspect ratios have been prepared via a low-temperature solvothermal method using LaCl3 and KF or NH4F as starting materials in absolute alcohol at 160 ℃ for 12 h. XRD pattern and TEM images show that the products are hexagonal structure with diameter of 80 nm and length up to 8 μm. The lanthanum sources played most important roles, reaction temperature and time also played important roles in the morphology control of final LaF3 products. The optimal conditions for ideal LaF3 nanowire are at a reaction temperature of 160 ℃ and reaction time for 14 h using LaCl3 and NH4F as starting materials. A possible formation mechanism for LaF3 nanowires is proposed. |
| Keywords: LaF3 solvothermal nanowire |
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| 张茂峰,孟建新,时朝璞,刘应亮,满石清.LaF3纳米线的低温溶剂热法制备及形成机理[J].无机化学学报,2006,22(10):1883-1886. |
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