Synthesis and microwave absorption properties of coiled carbon nanotubes/CoFe2O4 composites

被引：59

作者：

Feng, Jiantao ^{[1
]}

Wang, Yechen ^{[1
]}

Hou, Yanhui ^{[1
]}

Li, Juanbi ^{[1
]}

Li, Liangchao ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Zhejiang, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 15期

关键词：

CCNTs; CoFe2O4; Electrical and magnetic properties; Microwave absorption; ABSORBING PROPERTIES; ELECTROMAGNETIC PROPERTIES; FERRITE; GRAPHENE; NANOPARTICLES; MICROSPHERES; FE; NANOCOMPOSITES; NANOCRYSTALS; ENHANCEMENT;

D O I：

10.1016/j.ceramint.2016.08.110

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Coiled carbon nanotubes (CCNTs) were coated by CoFe2O4 (CFO) nanoparticles to form the CCNTs/CFO composites. The phase composition, morphology, electrical and magnetic performances of the composites were characterized by means of modern analytical techniques. The results indicated that the conductivity and magnetic performances of the samples were related to their compositions. The CCNTs/CFO composite with omega(CCNT)/omega(CFO) of 0.4 exhibited the best microwave absorption property in the prepared samples, whose minimum reflection loss was about - 14 dB in the frequency range of 2-18 GHz for a layer of 2.5-3.0 mm thickness, and the available bandwidth corresponding to RL less than -10 dB can reach 4.0 GHz. Hence, the obtained composite could be used as a new candidate for selective frequency shielding and lightweight microwave absorbing material. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：17814 / 17821

页数：8

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