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Co/C Composite Derived from a Newly Constructed Metal-Organic Framework for Effective Microwave Absorption

机译:来自新建的金属有机框架的CO / C复合材料,用于有效微波吸收

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摘要

The discovery of efficient electromagnetic wave absorbing materials for solving serious electromagnetic wave pollution is an urgent task. By rational design and assembly, a new three-dimensional metal-organic framework (MOP, CPT-1-Co) with the Co ions was constructed and employed as the precursor for the fabrication of Co/C composites via pyrolysis at high temperatures. The resultant Co/C composite pyrolyzed at 700 degrees C can absorb more than 90% of an EM wave at 2-18 GHz by the alternation of fabrication thickness. The effective absorption bandwidth can reach as high as 5.4 GHz at a thin thickness of 1.7 mm, which is superior to that of most EM wave absorbers. The bottom-up protocol in this report represents the first attempt to pyrolyze a new MOF for microwave absorber fabrication, which will provide valuable insight for designing more advanced MOFs and their applications in efficient electromagnetic wave absorption.
机译:用于解决严重电磁波污染的有效电磁波吸收材料的发现是一种紧迫的任务。 通过合理的设计和组装,构建具有CO离子的新的三维金属 - 有机骨架(MOP,CPT-1-CO),并用作在高温下通过热解制造CO / C复合材料的前体。 在700℃下热解的所得CO / C复合材料可以通过制造厚度的交替在2-18GHz处吸收大于90%的EM波。 有效吸收带宽可以高达5.4GHz,薄厚度为1.7mm,其优于大多数EM波吸收器。 本报告中的自下而上协议代表了热解的首次尝试为微波吸收器制造进行热解,这将为设计更先进的MOF和它们在有效的电磁波吸收中的应用提供有价值的洞察力。

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  • 来源
    《Crystal growth & design》 |2019年第3期|共7页
  • 作者单位

    Dezhou Univ Sch Chem &

    Chem Engn Dezhou 253023 Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

    Dezhou Univ Sch Chem &

    Chem Engn Dezhou 253023 Peoples R China;

    Dezhou Univ Sch Chem &

    Chem Engn Dezhou 253023 Peoples R China;

    Northwestern Polytech Univ Sch Sci Dept Appl Chem Xian 710072 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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