Electrospun magnetic carbon composite fibers: Synthesis and electromagnetic wave absorption characteristics
Electrospun magnetic carbon composite fibers: Synthesis and electromagnetic wave absorption characteristics
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静电纺磁性碳复合纤维的合成及电磁波吸收特性
DOI：
10.1002/app.38027
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发表时间：
2013-03
影响因子：
3
通讯作者：
Rutledge, Gregory C.
中科院分区：
文献类型：
--
作者：
Yang, Ying;Guo, Zhen;Zhang, Huan;Huang, Daqing;Gu, Jialin;Huang, Zhenghong;Kang, Feiyu;Hatton, T. Alan;Rutledge, Gregory C.
嵌入磁性纳米粒子的电纺聚丙烯腈（PAN）基碳复合纤维已被开发为电磁波吸收材料。纳米复合纤维是通过静电纺丝将 L-谷氨酸稳定的磁铁矿 (Fe3O4) 纳米颗粒分散在 PAN 和 N,N-二甲基甲酰胺溶液中制备的。 Fe3O4 嵌入的 PAN 纳米纤维在空气中于 270°C 下稳定，并在氮气中于 800°C 下碳化。 Fe3O4纳米颗粒呈结晶状，粒径约为7 nm，其中大部分被还原为Fe3C，并在碳纤维中形成直径达50 nm的团聚体。碳形态大部分是无序的，但在纳米粒子附近表现出层状石墨结构。碳复合纤维表现出铁磁行为，单位质量纤维的感应磁饱和随着前驱体中Fe3O4含量的增加而增加。通过调节碳纤维前驱体中 Fe3O4 的含量来调节复相对介电常数。随着 Fe3O4 含量的增加，即使对于纤维负载量低至 5 wt% 的样品，在 6 GHz 以下也能观察到良好的电磁波吸收特性。 © 2012 Wiley periodicals, Inc. J. Appl。聚合物。科学，2013
Electrospun polyacrylonitrile (PAN)‐based carbon composite fibers embedded with magnetic nanoparticles have been developed as materials for electromagnetic wave absorption. The nanocomposite fibers were prepared by electrospinning from a dispersion of magnetite (Fe3O4) nanoparticles stabilized byL‐glutamic acid in a solution of PAN andN, N‐dimethyl formamide. The Fe3O4‐embedded PAN nanofibers were stabilized at 270°C in air and carbonized at 800°C in nitrogen. The Fe3O4nanoparticles were crystalline with a particle size of about 7 nm, most of which was reduced to Fe3C with agglomerates of up to 50 nm diameter in the carbon fibers. The carbon morphology was mostly disordered, but exhibited a layered graphitic structure in the vicinity of the nanoparticles. The carbon composite fiber exhibited ferromagnetic behavior, and the induced magnetic saturation per unit mass of fibers increased with increasing Fe3O4content in the precursor. The complex relative dielectric permittivity was tuned by adjusting the amount of Fe3O4in the carbon fiber precursor. With increasing Fe3O4content, good electromagnetic wave absorption characteristics were observed below 6 GHz, even for samples with fiber loadings as low as 5 wt %. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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影响因子：
3.5
作者：
J. E. Panels;Jinwoo Lee;Kang-Yeol Park;Seung-Yeon Kang;M. Márquez;Ulrich B Wiesner;Y. Joo
通讯作者：
J. E. Panels;Jinwoo Lee;Kang-Yeol Park;Seung-Yeon Kang;M. Márquez;Ulrich B Wiesner;Y. Joo
铁磁性分级多孔碳的合成及染料分离性能
影响因子：
10.9
作者：
通讯作者：
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铜/铁矿渣制备Fe3O4颗粒及其微波吸收性能
影响因子：
4.7
作者：
Z. Zou, A. G. Xuan, Z. G. Yan
通讯作者：
Z. Zou, A. G. Xuan, Z. G. Yan
影响因子：
9.2
作者：
Lin Zou;Lin Gan;F. Kang;Mingxi Wang;W. Shen;Zhenghong Huang
通讯作者：
Lin Zou;Lin Gan;F. Kang;Mingxi Wang;W. Shen;Zhenghong Huang
影响因子：
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作者：
A. Kraupner;M. Antonietti;R. Palkovits;K. Schlicht;C. Giordano
通讯作者：
A. Kraupner;M. Antonietti;R. Palkovits;K. Schlicht;C. Giordano