氟化亚铕的制备和表征

Preparation and Characterization of Europium(Ⅱ)Fluoride

氟化亚铕是重要的低价稀土离子激活源，其制备以往主要采用氢气还原法和金属还原法，这些方法不是具有危险性，就是成本太高，给实际应用带来困难，在发光材料的合成和研究过程中，偿试用碳粉还原制备氟化亚铕，并用Ｘ射线衍射和荧光光谱方法和进行分析表征，实验结果表明，铕用碳粉还原法制得了整比的氟化亚铕。

Europium(Ⅱ)fluoride was prepared by carbon powder reduction for the flrst time.The synthesized product was characterized by X-ray diffraction and fluorescence spectroscopy. A comparison between carbon powder and hydrogen reduction was made.The experimental results demonstrate that it is profitable to synthesize blue-emitting phosphors with europium(Ⅱ)fluoride.