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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Egg white-derived carbon/magnetic nanoparticles/water-soluble graphene oxide composite with homogeneous structure as an excellent electromagnetic wave absorber
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Egg white-derived carbon/magnetic nanoparticles/water-soluble graphene oxide composite with homogeneous structure as an excellent electromagnetic wave absorber

机译：蛋白衍生的碳/磁性纳米粒子/水溶性石墨烯氧化物复合材料，具有均匀的结构，作为优异的电磁波吸收器

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摘要

An egg white-derived carbon/magnetic nanoparticles/water-soluble graphene oxide composite absorber (EWC/MNPs/WSGO) was specially designed and synthesized via a facile sol-gel process with subsequent high-temperature pyrolysis. Magnetic nanoparticles (MNPs) were used to bring magnetic loss ability and improve the electromagnetic matching condition. Water-soluble graphene oxide (WSGO) was also used to adjust the absorption properties of the composite absorber. Moreover, egg white, which is liquid biomass, enables uniform dispersion of MNPs and WSGO within the absorber, allowing full use of the synergistic effect of each component. Benefiting from the excellent homogeneous structure, moderate dielectric loss and magnetic loss, strongly matched impedance, and multiple polarization are achieved. The as-synthesized optimal sample (EWC/MNPs/WSGO-1.0) exhibits superior electromagnetic wave absorption properties. The minimum reflection loss (RLmin) reaches -51.5 dB, and the effective absorption bandwidth (EAB, RL < -10 dB) is 3.4 GHz at a thickness of 1.6 mm. Compared with the reported bio-derived carbonaceous composite absorbers, EWC/MNPs/WSGO has great potential to be a lightweight and efficient electromagnetic wave absorption material in the frequency range of 2 to 18 GHz.
机译：通过简单的溶胶-凝胶工艺和随后的高温热解，专门设计并合成了蛋清衍生的碳/磁性纳米颗粒/水溶性氧化石墨烯复合吸收剂（EWC/MNPs/WSGO）。磁性纳米颗粒（MNP）被用来提高磁损耗能力和改善电磁匹配条件。水溶性氧化石墨烯（WSGO）也用于调节复合吸收剂的吸收性能。此外，蛋清是一种液体生物质，能够使MNP和WSGO在吸收器内均匀分散，从而充分利用每种成分的协同效应。得益于优良的均匀结构，实现了中等的介电损耗和磁损耗、强匹配阻抗和多极化。合成的最佳样品（EWC/MNPs/WSGO-1.0）具有优异的电磁波吸收性能。在厚度为1.6mm时，最小反射损耗（RLmin）达到-51.5db，有效吸收带宽（EAB，RL<-10db）为3.4ghz。与已报道的生物衍生碳质复合吸波材料相比，EWC/MNPs/WSGO在2～18GHz频率范围内具有成为轻质高效吸波材料的巨大潜力。

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  • 作者

    Xu Pan; He Hongru; Qi Desheng; Fu Linyu; Yue Xigui; Zhu Xuanbo;

  • 作者单位

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

    Jilin Univ Coll Chem Natl &

    Local Joint Engn Lab Synth Technol High Pe Key Lab High Performance Plast Minist Educ Changchun 130012 Peoples R China;

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  • 正文语种 eng
  • 中图分类 物理化学（理论化学）、化学物理学;
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