Controllable permittivity in 3D Fe3O4/CNTs network for remarkable microwave absorption performances
Controllable permittivity in 3D Fe3O4/CNTs network for remarkable microwave absorption performances
复制标题
3D Fe3O4/CNT 网络中的可控介电常数可实现卓越的微波吸收性能
DOI：
10.1039/c7ra04456a
复制
发表时间：
2017-05
期刊：
影响因子：
3.9
通讯作者：
Yu Ronghai
中科院分区：
文献类型：
--
作者：
Zhu Lingyu;Zeng Xiaojun;Chen Meng;Yu Ronghai
Carbon-based magnetic composites are promising alternatives to pure magnetic nanoparticles (MOx, M = Fe, Co, Ni) and spinel ferrites (MFe2O4, M = Fe, Co, Ni, Mn, Zn) as electromagnetic (EM) wave absorption materials, which however suffer from complex processes and have poor microwave absorption properties. Herein, we anchored Fe3O4 porous spheres onto carbon nanotubes (CNTs) via a simple solvothermal method. The formed Fe3O4/CNTs nanocomposites show a three-dimension (3D) network. The improved effective bandwidth (3.9 GHz) and, more importantly, remarkable EM microwave absorption performances (−51 dB at 5.52 GHz) are observed in 3D Fe3O4/5 wt% CNTs nanocomposites. The enhanced microwave absorption performances are attributed to the high surface areas and porous structure of magnetic Fe3O4 spheres, which presented a good synergetic role with CNTs. Furthermore, the controllable permittivity in nanocomposites was developed by adjusting the CNT content, which balanced the permeability to obtain a good impedance matching. This work demonstrates a simple approach to enhancing the microwave absorption performances of EM wave absorption materials.
登录
查看更多内容
渗流复合材料中 SiO2 涂层金属颗粒调节负介电常数
影响因子：
6.2
作者：
Xie Peitao;Sun Kai;Wang Zhongyang;Liu Yao;Fan Runhua;Zhang Zidong;Schumacher Gerhard
通讯作者：
Schumacher Gerhard
通过相控合成在石墨烯上生长的六方和立方钴纳米晶体来增强钴的电磁性能
影响因子：
9.5
作者：
Pan, Guohua;Zhu, Jia;Yang, Xiaojing
通讯作者：
Yang, Xiaojing
橄榄球形CoFe2O4颗粒的制备及其吸波性能
影响因子：
11.9
作者：
Zhang Shenli;Jiao Qingze;Zhao Yun;Li Hansheng;Wu Qin
通讯作者：
Wu Qin
渗流银/钇铁石榴石纳米复合材料中具有类法诺共振和磁性的可调负介电常数
影响因子：
3.7
作者：
Sun Kai;Fan Runhua;Yin Yansheng;Guo Jiang;Li Xiaofeng;Lei Yanhua;An Liqiong;Cheng Chuanbing;Guo Zhanhu
通讯作者：
Guo Zhanhu
Fe填充碳纳米管的制备及其电磁微波吸收性能
影响因子：
6.2
作者：
Li, Xia;Zhao, Dong-Lin;Shen, Zeng-Min
通讯作者：
Shen, Zeng-Min