Synthesis and evaluation of microwave absorption properties of Fe3O4/Halloysite/polypyrrole nanocomposites

被引：9
|
作者：
Maleki, Sajjad Tabar [1 ]
Babamoradi, Mohsen [1 ]
Hajizadeh, Zoleikha [2 ]
Maleki, Ali [2 ]
Rouhi, Mojtaba [1 ]
机构：
[1] Iran Univ Sci & Technol, Dept Phys, Tehran 1684613114, Iran
[2] Iran Univ Sci & Technol, Dept Chem, Catalysts & Organ Synth Res Lab, Tehran 1684613114, Iran
来源：
MICRO & NANO LETTERS | 2020年 / 15卷 / 11期
关键词：
CARBON NANOTUBE; COMPLEX PERMEABILITY; COMPOSITE; FABRICATION; NANOPARTICLES; ADSORPTION; OXIDE;
D O I：
10.1049/mnl.2020.0165
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The Fe3O4 nanoparticles and Fe3O4/Halloysite nanotubes (HNTs) were synthesised by the co -precipitation method and Fe3O4/HNTs/ polypyrrole (PPy) nanocomposites were synthesised by in situ polymerisation of pyrrole monomers on the surface of the Fe3O4/HNTs. The scanning electron microscopy images showed the uniform structure of nanocomposites. The Fourier transform infrared spectra revealed the characteristic peaks of Halloysite and PPy. The Fe3O4/HNTs/PPy nanocomposite exhibits a saturated magnetisation of 6.7 emu/g. The microwave absorption properties of Fe3O4/HNTs/PPy nanocomposites were investigated in the 8-12 GHz (X-band) range. The value of the minimum reflection loss was obtained 26.2 dB at 11 GHz for the 3 mm thickness nanocomposite. The results showed the absorbing bandwidth below 10 dB was broadened to 2.3 GHz.
引用
收藏
页码：723 / 727
页数：5
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