节点文献

复合熔盐（Na₂CO₃+S+NaCl）协助焙烧制备三基色红粉的研究

Preparation of Y₂O₃∶Eu³⁺ red phosphor by firing assisted with（Na₂CO₃+S+NaCl） compound molten salt

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 HUANG Yan1,2,3,YE Hong-qi1,ZHUANG Wei-dong2,HU Yun-sheng2(1.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;2.National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,and Grirem Advanced Materials Co.Ltd.,Beijing 100088,China;3.Science and Technology of Hunan Technical Institute,Yueyang 414000,China)

【机构】中南大学化学化工学院；北京有色金属研究总院稀土材料国家工程研究中心有研稀土新材料股份有限公司；北京有色金属研究总院稀土材料国家工程研究中心；有研稀土新材料股份有限公司；湖南长沙410083；北京100088；湖南理工学院化学化工系；湖南岳阳414000；

【摘要】用均相沉淀法制备得到草酸钇铕前驱体,在前驱体的焙烧中用熔盐Na2CO3、S、NaCl或它们的组合辅助其于1000~1300℃下焙烧2h制备Y2O3∶Eu3+红色荧光粉。实验结果分析发现复合熔盐有利于Y2O3∶Eu3+发光强度的提高,在1300℃焙烧时其主峰强度比不加熔盐量时的高36%,且高出商用Y2O3∶Eu3+红粉的11%。熔盐配比的调节还可有效调控了Y2O3∶Eu3+粉体的颗粒尺寸。更多还原

【Abstract】 The precursor of Y2(C2O4)3∶Eu3+ was prepared by homogeneous precipitation-molten salts method.The molten salt,such as Na2CO3,S,NaCl or their combination is assistant of preparing Y2O3∶Eu3+ red phosphor in the process of sintering precursor at 1000-1300℃ for 2h.The effect of molten salt on particle size and luminescent intensity is also studied.The experimental results show that the compound molten salt is in favor of improving the luminescent intensity of Y2O3∶Eu3+.The intensity of the emission peak is 36% higher than that of the phosphor doped without molten salt and 11% higher than the corresponding commercial phosphor when the sintering temperature is 1300℃.At the same time,the particle size of Y2O3∶Eu3+ phosphor is controlled effectively by the molten salt.更多还原