期刊
JOURNAL OF RARE EARTHS
卷 24, 期 1, 页码 20-24出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1002-0721(06)60058-6
关键词
rare earth oxysulfide; combustion synthesis route; nanocrystalline
Y2O2S: Eu nano crystallines were prepared by a new ethanol assisted combustion synthesis method using sulfur-contained organic fuel in an ethanol-aqueous solution. The as-prepared nanocrystallines were characterized by X-ray diffraction, transmission electron microscope, photoluminescence spectra and X-ray luminescence spectra. It is shown that the assistant fuel ethanol has the effect of decreasing the water needed, simplifying the experiment procedure by dissolving rare earth nitrate and sulfur-contained organic fuel into an even solution, and prompting the formation of rare earth oxysulfide by igniting firstly during heating that leads to combustion decomposition reaction. Y2O2S: Eu nano crystallines with strong photoluminescence and X-ray luminescence are obtained using thioacetamide as organic fuel. Mixtures Of Y2O3: Eu and Y2O2S: Eu are acquired using thiourea as fuel, and the content Of Y2O2S: Eu increases until reaches to about half of the Y2O3: Eu with the increasing amount of thiourea. Y2O2SO4: Eu emerges when S/Y = 6 and increases with increasing thiourea amount.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据