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利用煤气化残渣构建Fe3O4和Fe负载的碳基复合吸波材料

力国民 侯如愿 毛璐涛 王喆 张克维 梁丽萍

力国民, 侯如愿, 毛璐涛, 王喆, 张克维, 梁丽萍. 利用煤气化残渣构建Fe3O4和Fe负载的碳基复合吸波材料[J]. 燃料化学学报. doi: 10.19906/j.cnki.JFCT.2022060
引用本文: 力国民, 侯如愿, 毛璐涛, 王喆, 张克维, 梁丽萍. 利用煤气化残渣构建Fe3O4和Fe负载的碳基复合吸波材料[J]. 燃料化学学报. doi: 10.19906/j.cnki.JFCT.2022060
LI Guo-min, HOU Ru-yuan, Mao Lu-tao, WANG Zhe, Zhang Ke-wei, LIANG Li-ping. Fe3O4 and Fe Loaded Carbon Matrix Composite Microwave Absorbents by Recycling of Coal Gasification Residue[J]. Journal of Fuel Chemistry and Technology. doi: 10.19906/j.cnki.JFCT.2022060
Citation: LI Guo-min, HOU Ru-yuan, Mao Lu-tao, WANG Zhe, Zhang Ke-wei, LIANG Li-ping. Fe3O4 and Fe Loaded Carbon Matrix Composite Microwave Absorbents by Recycling of Coal Gasification Residue[J]. Journal of Fuel Chemistry and Technology. doi: 10.19906/j.cnki.JFCT.2022060

利用煤气化残渣构建Fe3O4和Fe负载的碳基复合吸波材料

doi: 10.19906/j.cnki.JFCT.2022060
基金项目: 国家自然科学基金(51802212)、山西省自然科学基金(201801D221119)和中国–白俄罗斯电磁环境效应“一带一路”联合实验室(ZBKF2022030802,ZBKF2022030702)资助。
详细信息
    通讯作者:

    E-mail:ligm@tyust.edu.cn

    liangliping@tyust.edu.cn

  • 中图分类号: TB34

Fe3O4 and Fe Loaded Carbon Matrix Composite Microwave Absorbents by Recycling of Coal Gasification Residue

Funds: The project was supported by the National Science Foundation of China (51802212), the Natural Science Foundation of Shanxi Province (201801D221119) and the China-Belarus Belt and Road Joint Laboratory on Electromagnetic Environment Effect (ZBKF2022030802, ZBKF2022030702).
  • 摘要: 为了实现煤气化残渣的有效资源化利用,本文以煤气化残渣作为碳基载体,通过湿化学浸渍法和焙烧处理制得不同磁性组份负载的复合吸波材料。结果表明,在焙烧过程中,主要发生缓慢的碳热还原反应,磁性组份物相由 Fe2O3、Fe3O4转变为 Fe,同时碳热还原反应消耗掉一部分活性较高的碳,复合材料的石墨化程度变差。由于良好的阻抗匹配与衰减特性,复合材料FeCGR1000体现出更佳的吸波性能,当涂层厚度为 2.0 mm时,最低反射损耗值为−25.3 dB,在涂层厚度为1.5 mm时,有效带宽达到4.0 GHz。本研究的开展不仅实现了煤气化残渣资源化利用,而且为煤气化残渣的高附加值应用提供新思路。
  • 图  1  FeCGR 复合材料的 XRD 图谱(a)与Raman 图谱(b)

    Figure  1  XRD patterns (a) and Raman spectra (b) of FeCGR composites

    图  2  复合材料的SEM 照片FeCGR500 (a),FeCGR600 (b),FeCGR700 (c),FeCGR800 (d),FeCGR900 (e)和FeCGR1000 (f )

    Figure  2  SEM images of FeCGR500 (a), FeCGR600 (b), FeCGR700 (c), FeCGR800 (d), FeCGR900 (e) and FeCGR1000 (f )

    图  3  FeCGR700的XPS光谱:全谱图(a),C 1s (b)

    Figure  3  XPS spectra of FeCGR700: survey scan (a) and C 1s (b)

    图  4  FeCGR700 (a1,a2)和FeCGR1000 (b1,b2) 的反射损耗曲线图

    Figure  4  Reflection loss curves for FeCGR700 (a1, a2) and FeCGR1000 (b1, b2)

    图  5  FeCGR700和FeCGR1000的电磁参数:ε' (a),ε" (b),µ' (c)和µ" (d)

    Figure  5  Electromagnetic parameters of ε' (a), ε" (b), µ' (c) and µ" (d) for FeCGR700 and FeCGR1000

    图  6  FeCGR700和FeCGR1000的介电损耗因子(a)及磁损耗因子(b)

    Figure  6  Dielectric loss tangents (a) and magnetic loss tangents (b) for FeCGR700 and FeCGR1000

    图  7  样品 FeCGR700 (a)和 FeCGR1000 (b)的Cole-Cole半圆

    Figure  7  Cole-Cole semicircle for FeCGR700 (a) and FeCGR1000 (b)

    图  8  复合材料的衰减常数(a),FeCGR700 (b)和FeCGR1000 (c)的阻抗匹配特性曲线

    Figure  8  Attenuation constant of FeCGR composites (a), Impedance matching characteristic curves of FeCGR700 (b) and FeCGR1000 (c)

    表  1  已报道材料的吸波性能

    Table  1  Microwave absorption performance of some reported absorbents.

    SampleEffective
    bandwidth
    (GHz)
    RLmin
    (dB)
    Coating
    thickness
    (mm)
    Ref.
    Fe doping LaCoO34.6−18.12.3[20]
    Fe@MnO21.9−13.21.5[21]
    TiO2@C-Ni/CNTs3.9−19.32.4[22]
    ZnO/C/Graphene4.1−26.12.1[23]
    Fe3O4 Nanotubes4.5−27.83.0[24]
    FeCGR10004.0−19.81.5This work
    下载: 导出CSV
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  • 收稿日期:  2022-06-24
  • 录用日期:  2022-07-14
  • 修回日期:  2022-07-12
  • 网络出版日期:  2022-07-28

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