Hydrothermal synthesis of mixed rare earth-alkali metal or ammonium fluorides
来源期刊：Journal of Rare Earths2010年第5期
论文作者：由芳田 黄世华 时秋峰
文章页码：676 - 679
摘 要：The recent results on hydrothermal synthesis of mixed rare earth-alkali or ammonium fluorides were presented. The initial ratios of the starting materials, pH value and reaction temperature were the critical factors for obtaining the single-phase product. Four main types of complex rare earth fluorides, AREF4, A2REF5, ARE2F7 and ARE3F10 （A=Na+, K+, Rb+, NH4+）, appeared in the primary hydrothermal reactions. The correlation between cation sizes and the formation of mixed rare earth fluorides under mild hydrothermal condition was given.
由芳田，黄世华，时秋峰
Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University
摘 要：The recent results on hydrothermal synthesis of mixed rare earth-alkali or ammonium fluorides were presented. The initial ratios of the starting materials, pH value and reaction temperature were the critical factors for obtaining the single-phase product. Four main types of complex rare earth fluorides, AREF4, A2REF5, ARE2F7 and ARE3F10 （A=Na+, K+, Rb+, NH4+）, appeared in the primary hydrothermal reactions. The correlation between cation sizes and the formation of mixed rare earth fluorides under mild hydrothermal condition was given.
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