Hierarchical composites of polyaniline nanorod arrays covalently-grafted on the surfaces of graphene@Fe3O4@C with high microwave absorption performance

Lei Wang; Ying Huang; Chao Li; Junjiao Chen; Xu Sun

doi:10.1016/j.compscitech.2014.12.011

Hierarchical composites of polyaniline nanorod arrays covalently-grafted on the surfaces of graphene@Fe₃O₄@C with high microwave absorption performance

Lei Wang, Ying Huang, Chao Li, Junjiao Chen, Xu Sun

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

Abstract

Two kinds of hierarchical structures of graphene@Fe₃O₄@C@PANI (polyaniline) nanorod arrays were prepared by covalently and noncovalently grafting PANI nanorod arrays to the surface of graphene@Fe₃O₄@C, respectively. The measured electromagnetic parameters show that the bonding form between PANI nanorod arrays and graphene@Fe₃O₄@C have significantly effect on microwave absorption properties of graphene@Fe₃O₄@C@PANI nanorod arrays hierarchical structures, and the formation of covalent bond between PANI nanorod arrays and graphene@Fe₃O₄@C in hierarchical structures exhibits significantly enhanced microwave absorption performance. The maximum reflection loss is up to -44.2dB at 11.4GHz and the absorption bandwidth with a reflection loss below -10dB ranges from 9.7 to 15.5GHz with a thickness of 3mm. Therefore, the high microwave absorption performance with lightweight and wide absorption frequency band can be realized by fabricating graphene-based hierarchical structures using covalent bond interaction.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Composites Science and Technology
Volume	108
DOIs	https://doi.org/10.1016/j.compscitech.2014.12.011
State	Published - 5 Feb 2015

Keywords

A. Functional composites
A. Polymers
B. Electrical properties
B. Interface

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10.1016/j.compscitech.2014.12.011

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title = "Hierarchical composites of polyaniline nanorod arrays covalently-grafted on the surfaces of graphene@Fe3O4@C with high microwave absorption performance",

abstract = "Two kinds of hierarchical structures of graphene@Fe3O4@C@PANI (polyaniline) nanorod arrays were prepared by covalently and noncovalently grafting PANI nanorod arrays to the surface of graphene@Fe3O4@C, respectively. The measured electromagnetic parameters show that the bonding form between PANI nanorod arrays and graphene@Fe3O4@C have significantly effect on microwave absorption properties of graphene@Fe3O4@C@PANI nanorod arrays hierarchical structures, and the formation of covalent bond between PANI nanorod arrays and graphene@Fe3O4@C in hierarchical structures exhibits significantly enhanced microwave absorption performance. The maximum reflection loss is up to -44.2dB at 11.4GHz and the absorption bandwidth with a reflection loss below -10dB ranges from 9.7 to 15.5GHz with a thickness of 3mm. Therefore, the high microwave absorption performance with lightweight and wide absorption frequency band can be realized by fabricating graphene-based hierarchical structures using covalent bond interaction.",

keywords = "A. Functional composites, A. Polymers, B. Electrical properties, B. Interface",

author = "Lei Wang and Ying Huang and Chao Li and Junjiao Chen and Xu Sun",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

year = "2015",

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doi = "10.1016/j.compscitech.2014.12.011",

language = "英语",

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T1 - Hierarchical composites of polyaniline nanorod arrays covalently-grafted on the surfaces of graphene@Fe3O4@C with high microwave absorption performance

AU - Wang, Lei

AU - Huang, Ying

AU - Li, Chao

AU - Chen, Junjiao

AU - Sun, Xu

PY - 2015/2/5

Y1 - 2015/2/5

N2 - Two kinds of hierarchical structures of graphene@Fe3O4@C@PANI (polyaniline) nanorod arrays were prepared by covalently and noncovalently grafting PANI nanorod arrays to the surface of graphene@Fe3O4@C, respectively. The measured electromagnetic parameters show that the bonding form between PANI nanorod arrays and graphene@Fe3O4@C have significantly effect on microwave absorption properties of graphene@Fe3O4@C@PANI nanorod arrays hierarchical structures, and the formation of covalent bond between PANI nanorod arrays and graphene@Fe3O4@C in hierarchical structures exhibits significantly enhanced microwave absorption performance. The maximum reflection loss is up to -44.2dB at 11.4GHz and the absorption bandwidth with a reflection loss below -10dB ranges from 9.7 to 15.5GHz with a thickness of 3mm. Therefore, the high microwave absorption performance with lightweight and wide absorption frequency band can be realized by fabricating graphene-based hierarchical structures using covalent bond interaction.

AB - Two kinds of hierarchical structures of graphene@Fe3O4@C@PANI (polyaniline) nanorod arrays were prepared by covalently and noncovalently grafting PANI nanorod arrays to the surface of graphene@Fe3O4@C, respectively. The measured electromagnetic parameters show that the bonding form between PANI nanorod arrays and graphene@Fe3O4@C have significantly effect on microwave absorption properties of graphene@Fe3O4@C@PANI nanorod arrays hierarchical structures, and the formation of covalent bond between PANI nanorod arrays and graphene@Fe3O4@C in hierarchical structures exhibits significantly enhanced microwave absorption performance. The maximum reflection loss is up to -44.2dB at 11.4GHz and the absorption bandwidth with a reflection loss below -10dB ranges from 9.7 to 15.5GHz with a thickness of 3mm. Therefore, the high microwave absorption performance with lightweight and wide absorption frequency band can be realized by fabricating graphene-based hierarchical structures using covalent bond interaction.

KW - A. Functional composites

KW - A. Polymers

KW - B. Electrical properties

KW - B. Interface

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U2 - 10.1016/j.compscitech.2014.12.011

DO - 10.1016/j.compscitech.2014.12.011

M3 - 文章

AN - SCOPUS:84921353814

SN - 0266-3538

VL - 108

SP - 1

EP - 8

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Hierarchical composites of polyaniline nanorod arrays covalently-grafted on the surfaces of graphene@Fe₃O₄@C with high microwave absorption performance

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Keywords

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