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首页> 外文期刊>RSC Advances >Synthesis and characterization of calcium lanthanum sulfide via a wet chemistry route followed by thermal decomposition
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Synthesis and characterization of calcium lanthanum sulfide via a wet chemistry route followed by thermal decomposition

机译：湿化学路径随后热分解的合成与表征硫化钙硫化物硫化物

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摘要

Calcium lanthanum sulfide (CaLa2S4) has been extensively studied as a promising candidate for advanced infrared optical ceramics. In the present research, we report the successful synthesis of CaLa2S4 via a wet chemistry method followed by thermal decomposition. CaLa2S4 precursor material was first prepared by a facile ethanol-based wet chemical single-source precursor route. The precursor was then thermally decomposed in argon at high temperature to form CaLa2S4. The phase composition and morphology of the synthesized CaLa2S4 powder were confirmed and observed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), respectively. Surface area and pore size analyses showed that the CaLa2S4 powder had a high specific surface due to a combined effect of small particle size and the existence of mesopores. Optical characterization revealed that the synthesized CaLa2S4 powder exhibited quantum size confinement and near-band-edge photoluminescence.
机译：硫化钙硫化物（Cala2S4）已被广泛地研究了先进的红外光学陶瓷的有希望的候选者。在本研究中，我们通过湿化学方法报告Cala2S4的成功合成，然后进行热分解。首先通过容易基于乙醇的湿化学单源前体途径制备CALA2S4前体材料。然后在高温下在氩气中热分解前体以形成Cala2S4。通过X射线衍射（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）确认合成的CALA2S4粉末的相组合物和形态。表面积和孔径分析表明，由于小粒径和中孔的存在，Cala2S4粉末具有高比表面。光学表征显示，合成的CALA2S4粉末表现出量子尺寸限制和近带缘光致发光。

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  • 来源
    《RSC Advances》 |2016年第41期|共5页
  • 作者

    Li Yiyu; Zhang Lihua; Wu Yiquan;

  • 作者单位

    Alfred Univ New York State Coll Ceram Kazuo Inamori Sch Engn 2 Pine St Alfred NY 14802 USA;

    Brookhaven Natl Lab Ctr Funct Nanomat Upton NY 11973 USA;

    Alfred Univ New York State Coll Ceram Kazuo Inamori Sch Engn 2 Pine St Alfred NY 14802 USA;

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  • 正文语种 eng
  • 中图分类 化学;
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