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Y(OH)_3 and Y_2O_3 with novel structures: Formation and mechanism

机译：具有新颖结构的Y（OH）_3和Y_2O_3：形成和机理

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摘要

Shuttlelike yttrium hydroxide (Y(OH)_3) microcrystals attached with microrods in the middle part were prepared for the first time via a facile solvothermal process in the absence of templates or surfactants. Yttrium oxide (Y_2O_3) with similar morphology was also prepared by calcining the as-prepared Y(OH)_3 at 500 ℃ for 4h. X-ray powder diffraction (XRD) results demonstrate that the as-prepared Y(OH)_3 and Y_2O_3 are attributed to hexagonal phase and cubic phase, respectively. The length of the shuttles is about 15 μm and the diameter is about 2 μm. The attached rods have an average size of 3 μm in length and 1μm in diameter. Furthermore, the surface of the rods and the shuttles is very smooth. The influences of solvent, concentrations of yttrium nitrate and sodium hydroxide on the morphologies of Y(OH)_3 were investigated in detail. Y_2O_3:Eu~(3+) microstructures with similar morphology were also prepared and their photoluminescence (PL) properties were investigated.
机译：在不存在模板或表面活性剂的情况下，通过简便的溶剂热法首次制备了在中间部分附着有微棒的梭状氢氧化钇（Y（OH）_3）微晶。在500℃下煅烧4h制备了相似形貌的氧化钇（Y_2O_3）。 X射线粉末衍射（XRD）结果表明，所制备的Y（OH）_3和Y_2O_3分别归因于六方相和立方相。梭子的长度为约15μm，直径为约2μm。所连接的棒的平均长度为3μm，直径为1μm。此外，杆和梭的表面非常光滑。详细研究了溶剂，硝酸钇和氢氧化钠浓度对Y（OH）_3形貌的影响。还制备了具有相似形貌的Y_2O_3：Eu〜（3+）微结构，并研究了它们的光致发光（PL）特性。

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  • 来源
    《Materials Science and Engineering》 |2009年第3期|200-204|共5页
  • 作者

    S.J. Wang; S.L. Zhong; X.J. Ou-Yang; N. Hu; X.S. Chen; S.P. Wang; R. Xu;

  • 作者单位

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

    College of Chemistry and Chemical Engineering, Jiangxi Normal University. Nanchang, Jiangxi 330022, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    yttrium oxide; solvothermal synthesis; luminescence; self-assembly;

    机译：氧化钇溶剂热合成发光自组装;

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