| Synthesis of （Sr,Eu）CO3@SiO2 core-shell-like precursor for alkali earth silicate phosphors |
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| 引用本文： | 胡运生,郝建华,庄卫东,黄小卫,何华强. Synthesis of （Sr,Eu）CO3@SiO2 core-shell-like precursor for alkali earth silicate phosphors[J]. 中国稀土学报(英文版), 2011, 0(10): 911-914 |
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| 作者姓名： | 胡运生 郝建华 庄卫东 黄小卫 何华强 |
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| 作者单位： | National Engineering Research Center for Rare Earth Materials;General Research Institute for Nonferrous Metals;and Grirem Advanced Materials Co.;Ltd.;Department of Applied Physics;The Hong Kong Polytechnic University; |
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| 基金项目： | supported by the National Hi-Tech R&D Program of China (863 Program, 2010AA03A404, 2011AA03A101); Beijing Natural Science Foundation (2102022); the Hong Kong Polytechnic University Grant (J-BB9R) |
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| 摘 要： | Monodisperse(Sr,Eu)CO3 sphere(the homogenous mixture of Sr2+ and Eu3+ carbonates) was firstly prepared,and then its surfacewas coated by amorphous SiO2 in the presence of cationic surfactant cetyltrimethylammonium bromide(CTAB) to form(Sr,Eu)CO3@SiO2core-shell-like precursor.The overall synthesized mechanism was investigated and proposed based on the Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD) and scanning electron microscopy(SEM).This strategy could be applied to construct core-shellstructured precursors for the preparation of alkali earth silicate phosphors.
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| 关 键 词： | core-shell structure precursor formation mechanism phosphor rare earths |
Synthesis of(Sr,Eu)CO_3@SiO_2 core-shell-like precursor for alkali earth silicate phosphors |
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| HU Yunsheng,HAO Jianhua,ZHUANG Weidong,HUANG Xiaowei,HE Huaqiang. Synthesis of(Sr,Eu)CO_3@SiO_2 core-shell-like precursor for alkali earth silicate phosphors[J]. Journal of Rare Earths, 2011, 0(10): 911-914 |
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| Authors: | HU Yunsheng HAO Jianhua ZHUANG Weidong HUANG Xiaowei HE Huaqiang |
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| Affiliation: | HU Yunsheng1,HAO Jianhua2,ZHUANG Weidong1,HUANG Xiaowei1,HE Huaqiang1(1.National Engineering Research Center for Rare Earth Materials,General Research Institute for Nonferrous Metals,and Grirem Advanced Materials Co.,Ltd.,Beijing100088,China,2.Department of Applied Physics,The Hong Kong Polytechnic University,Hong Kong,China) |
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| Abstract: | Monodisperse(Sr,Eu)CO3 sphere(the homogenous mixture of Sr2+ and Eu3+ carbonates) was firstly prepared,and then its surfacewas coated by amorphous SiO2 in the presence of cationic surfactant cetyltrimethylammonium bromide(CTAB) to form(Sr,Eu)CO3@SiO2core-shell-like precursor.The overall synthesized mechanism was investigated and proposed based on the Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD) and scanning electron microscopy(SEM).This strategy could be applied to construct core-she... |
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| Keywords: | core-shell structure precursor formation mechanism phosphor rare earths |
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