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首页> 外文期刊>Fuel >Application of featured microwave-metal discharge for the fabrication of well-graphitized carbon-encapsulated Fe nanoparticles for enhancing microwave absorption efficiency
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Application of featured microwave-metal discharge for the fabrication of well-graphitized carbon-encapsulated Fe nanoparticles for enhancing microwave absorption efficiency

机译：特有的微波金属放电技术在石墨化良好的碳包覆铁纳米颗粒的制备中的应用，以提高微波吸收效率

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摘要

Carbon-encapsulated iron nanoparticles (Fe@CNPs) with a high degree of graphitization, good integrity in the graphite shells, and high microwave-absorbing capability were prepared by first dissolving ferrocene into organic solvent and then being carbonized by MW-metal discharges under inert atmosphere. Four different organic solvents (benzene, cyclohexane, paraffin, and anhydrous ethanol) were tested, and well-graphitized Fe@CNPs were formed when using benzene or cyclohexane as the solvent. The use of MW-metal discharges with low-toxic cyclohexane and ferrocene as raw materials provides a new method for the preparation of Fe@CNPs with the merits of simplicity, low environmental impact, and high efficiency. The fabricated Fe@CNPs have excellent microwave-absorbing capability, which is respectively 29, 19.3, and 9.7 times those of carbonyl iron powder, SiC, and carbon nanotubes after 1-min microwave irradiation at 1000 W. The thermal gravimetric analysis demonstrates that the fabricated Fe@CNPs have good thermal stability. Owing to these properties, Fe@CNPs have the potential to shape nanoscale or micron scale high-energy sites for a vast variety of applications in the field of microwave chemistry.
机译：首先将二茂铁溶解在有机溶剂中，然后在惰性条件下通过MW-金属放电进行碳化，从而制得具有高石墨化度，良好的石墨壳完整性和高微波吸收能力的碳包裹铁纳米颗粒（Fe @ CNPs）。大气层。测试了四种不同的有机溶剂（苯，环己烷，石蜡和无水乙醇），当使用苯或环己烷作为溶剂时，形成了良好石墨化的Fe @ CNP。以低毒的环己烷和二茂铁为原料的多壁金属排料的使用提供了一种制备Fe @ CNP的新方法，具有简便，对环境影响小，效率高的优点。制备的Fe @ CNPs具有优异的微波吸收能力，在1000 W的微波照射1分钟后，其吸收能力分别是羰基铁粉，SiC和碳纳米管的29、19.3和9.7倍。热重分析表明，制备的Fe @ CNP具有良好的热稳定性。由于这些特性，Fe @ CNPs有潜力在微波化学领域的各种应用中形成纳米级或微米级的高能位。

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  • 来源
    《Fuel》 |2018年第1期|669-676|共8页
  • 作者

    Sun Jing; Wang Yican; Wang Wenlong; Wang Ke; Lu Jiaxin;

  • 作者单位

    Shandong Univ, Natl Engn Lab Coal Fired Pollutants Emiss Reduct, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Natl Engn Lab Coal Fired Pollutants Emiss Reduct, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Natl Engn Lab Coal Fired Pollutants Emiss Reduct, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Natl Engn Lab Coal Fired Pollutants Emiss Reduct, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China;

    Shandong Univ, Natl Engn Lab Coal Fired Pollutants Emiss Reduct, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microwave-metal discharges; Carbon encapsulated iron nanoparticles; Ferrocene; Microwave-absorbing capability; High-energy sites;

    机译：微波金属放电;碳包裹的铁纳米颗粒;二茂铁;吸波能力;高能位;

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