Synthesis and electromagnetic, microwave absorbing properties of polyaniline/graphene oxide/Fe3O4 nanocomposites

Jing Zhao; Junpin Lin; Junping Xiao; Huili Fan

doi:10.1039/C4RA12186D

Synthesis and electromagnetic, microwave absorbing properties of polyaniline/graphene oxide/Fe₃O₄ nanocomposites

Jing Zhao,^a Junpin Lin,^b Junping Xiao*^a and Huili Fan*^a

* Corresponding authors

^a School of Chemistry and Biological Engineering, Department of Chemistry and Chemical Engineering, University of Science and Technology Beijing, Beijing 100083, China
E-mail: fanhl@sas.ustb.edu.cn

^b State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Abstract

Ternary composites of polyaniline/graphene oxide/Fe₃O₄ (PANI/GO/Fe₃O₄) were synthesized by a simple method and the electromagnetic absorption properties of the composites were investigated in the paper. The structures of the composites were characterized with Fourier-transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. It can be found that the maximum reflection loss of PANI/GO/Fe₃O₄ can reach −53.5 dB at 7.5 GHz, and the bandwidth exceeds −10 dB is 2.8 GHz with absorber thickness of 3.91 mm. The electromagnetic parameters indicated enhanced electromagnetic absorption properties of the nanocomposites, which was attributed to the better impedance matching. On the basis of the above characterization, an electromagnetic complementary theory was proposed to explain the impedance matching.

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https://doi.org/10.1039/C4RA12186D

Article type

Paper

Submitted

11 Oct 2014

Accepted

04 Feb 2015

First published

04 Feb 2015

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RSC Adv., 2015,5, 19345-19352

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Synthesis and electromagnetic, microwave absorbing properties of polyaniline/graphene oxide/Fe₃O₄ nanocomposites

J. Zhao, J. Lin, J. Xiao and H. Fan, RSC Adv., 2015, 5, 19345 DOI: 10.1039/C4RA12186D

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Synthesis and electromagnetic, microwave absorbing properties of polyaniline/graphene oxide/Fe₃O₄ nanocomposites

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Synthesis and electromagnetic, microwave absorbing properties of polyaniline/graphene oxide/Fe₃O₄ nanocomposites

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