Ellipsoidal Fe3O4 @ C nanoparticles decorated fluffy structured graphene nanocomposites and their enhanced microwave absorption properties

被引：13
|
作者：
Zhang, Kaichuang [1 ]
Zhang, Qian [1 ]
Gao, Xinbao [1 ]
Chen, Xuefang [2 ]
Shi, Jinwei [3 ]
Wu, Jingyi [1 ]
机构：
[1] Shijiazhuang Mech Engn Coll, Shijiazhuang 050003, Hebei, Peoples R China
[2] Northwestern Polytech Univ, MOE Key Lab Mat Phys & Chem Extrodinary Condit, Sch Sci, Xian 710072, Shaanxi, Peoples R China
[3] Res Inst Artillery & Def Forces Equipment Technol, Beijing 100012, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 08期
关键词：
PERFORMANCE ANODE MATERIALS; OXIDE; COMPOSITES; NANOSHEETS; NANOTUBES; TIO2; FABRICATION; MICROSPHERES; SPHERES;
D O I：
10.1007/s10854-018-8665-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ellipsoidal Fe3O4 @ C nanoparticles decorated fluffy structured graphene nanocomposites were synthesized. The effect of the magnetic nanoparticle content on the microwave absorption properties was studied. As electromagnetic wave absorber, we researched the electromagnetic absorption properties of the composites that were composed of the prepared nanocomposites and paraffin with a filler loading of 80 wt% paraffin. The results showed that the nanocomposites with suitable magnetic nanoparticle showed a maximum reflection loss of - 55.02 dB at 14.8 GHz with a coating thickness of 1.5 mm; and the bandwidth less than - 10 dB reached 5.44 GHz. The microwave absorption mechanism of the ellipsoidal Fe3O4 @ C nanoparticles decorated fluffy structured graphene nanocomposites mainly came from the effect of the fluffy structure, multiple reflections, interfacial polarization, magnetic loss and dielectric loss.
引用
收藏
页码：6785 / 6796
页数：12
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