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Size and morphology-controlled synthesis of Ni3C nanoparticles in a TEG solution and their magnetic properties

机译：TEG溶液中Ni3C纳米颗粒的尺寸和形态控制合成及其磁性特性

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摘要

Nickel carbide nanoparticles (Ni3C NPs) were synthesized by a polyol solution refluxing route at a temperature of 300 degrees C for 20 min using triphenylphosphine oxide (TPPO) as the surfactant. Size and morphologies of the Ni3C NPs were controlled by adjusting the concentration of Ni(NO3)(2) and TPPO. The products consisted of Ni and Ni3C could be kinetically controlled by a reaction temperature of 250-290 degrees C and time less than 20 min and the proportion of the Ni component was lower with longer reaction times and higher temperatures due to carbon atom insertion via a carbonaceous film that formed on the surface of the growing particles. The formation process of the Ni3C NPs was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and X-ray photoelectron spectroscopy (XPS) characterization. The saturation magnetizations of products decreased with decreasing ratio of Ni : Ni3C, which inferred that Ni3C was non-magnetic and the magnetism arose from trace Ni in the products.
机译：使用三苯基膦（TPPO）作为表面活性剂，通过多元醇溶液回流途径由多元醇溶液回流10分钟合成碳化镍纳米颗粒（NI3C NPS）。通过调节Ni（NO 3）（2）和TPPO的浓度来控制NI3C NP的大小和形态。由Ni和Ni3C组成的产物可以通过250-290℃的反应温度和小于20分钟的时间控制，并且Ni组分的比例随着碳原子通过A的碳原子插入而较长的反应时间和较高的温度较低形成在生长颗粒表面上的碳质膜。所述Ni3C NP的形成过程，用X射线衍射（XRD）研究，扫描电子显微镜（SEM），高分辨率的透射电子显微镜（HRTEM），和X射线光电子能谱（XPS）表征。产物的饱和磁化随着Ni：Ni3c的降低而降低，这推断Ni3c是非磁性的，并且磁性从产品中的痕量Ni产生。

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  • 来源
    《RSC Advances》 |2016年第85期|共6页
  • 作者

    Zhang Yajing; Zhu Yuan; Cao Yan; Li Da; Zhang Zhidong; Wang Kangjun; Ding Fu; Wang Xiaolei; Meng Dan; Fan Lihui; Wu Jing;

  • 作者单位

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Peoples R China;

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Technol Sch Sci Shenyang 110870 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

    Shenyang Univ Chem Technol Coll Chem Engn Shenyang 110142 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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