Microwave absorption properties of 3D cross-linked Fe/C porous nanofibers prepared by electrospinning
Microwave absorption properties of 3D cross-linked Fe/C porous nanofibers prepared by electrospinning
复制标题
静电纺丝法制备3D交联Fe/C多孔纳米纤维的微波吸收性能
DOI：
10.1016/j.carbon.2018.03.081
复制
发表时间：
2018-08-01
期刊：
影响因子：
10.9
通讯作者：
Yan, Pengxun
中科院分区：
文献类型：
--
作者：
Wang, Fengyi;Sun, Yunqiang;Yan, Pengxun
Well dispersed core/shell structure Fe nanopowders (FeNPs) produced by high energy ion beam evaporation (HEIBE) are added to polyacrylonitrile/N, N-Dimethylformamide (PAN/DMF) solution containing vegetable oil to prepare Fe/C porous nanofibers (FeCPNFs) by electrospinning as electromagnetic microwave absorption material. The FeCPNFs have 3D cross-linked network structure with low graphitization degree. The permittivity and permeability behaviors of the composites made from FeCPNFs and wax are studied in the frequency range of 2.00-18.00 GHz. Mainly due to impedance matching, electric loss, magnetic loss, attenuation constant and "geometrical effect" the FeCPNFs have good microwave absorption properties. The reflection loss (RL) of FeCPNFs can reach -56.6 dB at matching frequency (4.96 GHz) and matching thickness (4.29 mm). The RL value can also reach -26.1 dB at 11.68 GHz, and effective absorption bandwidth (RL
