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首页> 外文期刊>RSC Advances >Structure evolution of Prussian blue analogues to CoFe@C core-shell nanocomposites with good microwave absorbing performances
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Structure evolution of Prussian blue analogues to CoFe@C core-shell nanocomposites with good microwave absorbing performances

机译：具有良好微波吸收性能的普鲁斯蓝色类似物与Cofe @ C核心壳纳米复合材料的结构演变

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摘要

Novel uniform CoFe@C core-shell composite nanoparticles with good distribution have been fabricated through the combined self-assembly and controlled thermal decomposition of Co-based Prussian blue (PB) nanocubes. Good intrinsic magnetic properties including a high saturation magnetization of 90.9-182.5 A m(2) kg(-1) and a high coercivity of 192-510 Oe are achieved for these CoFe@C nanocomposites. Excellent wave absorbing properties, including a minimum reflection loss value of -43.5 dB at 9.92 GHz with a sample thickness of 2.5 mm and an effective absorption bandwidth of 4.3 GHz (below -10 dB), are obtained for the CoFe@C nanocomposites, which can be ascribed to the good magnetic properties originating from CoFe as the core and the good electrical conductivity from the graphite carbon layers. These CoFe@C nanocomposites also show good structural stability and low density, which further increases their potential for application as high-performance electromagnetic wave-absorbing materials.
机译：通过组合的自组装和控制的普鲁士蓝（PB）纳米孔的组合和控制的热分解，制造了一种具有良好分布的Core-Shell复合纳米粒子。对于这些CoFe @ C纳米复合材料，实现了包括高饱和磁化强度的良好的内在磁性，包括高饱和磁化强度为90.9-182.5mM（2）kg（-1）和192-510个OE的高矫顽力。优异的波浪吸收性能，包括厚度为2.5mm的9.92GHz的最小反射损耗值-43.5 dB，为COFE @ C纳米复合材料获得4.3GHz（低于-10dB以下-10dB以下的有效吸收带宽。可以归因于源自COFE的良好磁性，作为芯的核心和来自石墨碳层的良好电导率。这些COFE @ C纳米复合材料还具有良好的结构稳定性和低密度，这进一步提高了它们作为高性能电磁波吸收材料的应用的潜力。

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  • 来源
    《RSC Advances》 |2016年第107期|共9页
  • 作者

    Zeng Xiaojun; Yang Bai; Zhu Lingyu; Yang Haozhe; Yu Ronghai;

  • 作者单位

    Beihang Univ Sch Mat Sci &

    Engn Key Lab Aerosp Adv Mat &

    Performance Minist Educ Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Key Lab Aerosp Adv Mat &

    Performance Minist Educ Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Key Lab Aerosp Adv Mat &

    Performance Minist Educ Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Key Lab Aerosp Adv Mat &

    Performance Minist Educ Beijing 100191 Peoples R China;

    Beihang Univ Sch Mat Sci &

    Engn Key Lab Aerosp Adv Mat &

    Performance Minist Educ Beijing 100191 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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