Sandwich-structured graphene@Fe3O4@carbon nanocomposites with enhanced electromagnetic absorption properties

Ying Huang; Lei Wang; Xu Sun

doi:10.1016/j.matlet.2015.01.015

Sandwich-structured graphene@Fe₃O₄@carbon nanocomposites with enhanced electromagnetic absorption properties

Ying Huang, Lei Wang, Xu Sun

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

29 Scopus citations

Abstract

Sandwich-structured graphene@Fe₃O₄@carbon nanocomposites were prepared by a rational route. Transmission electron microscopy measurements show that an amorphous carbon layer is covered on the surface of graphene@Fe₃O₄ and the sandwich-structured graphene@Fe₃O₄@carbon is formed, and the TGA results indicate that the carbon content is 42.4 wt%. Compared with graphene@Fe₃O₄, the as-prepared graphene@Fe₃O₄@carbon nanocomposites exhibit enhanced microwave absorption properties in terms of both the maximum reflection loss value and the absorption bandwidth. The maximum reflection loss of graphene@Fe₃O₄@carbon is -30.1 dB at 14.8 GHz with a thickness of only 1.8 mm, and the absorption bandwidths with a reflection loss below -10 dB ranges from 12.1 to 17.5 GHz.

Original language	English
Pages (from-to)	26-29
Number of pages	4
Journal	Materials Letters
Volume	144
DOIs	https://doi.org/10.1016/j.matlet.2015.01.015
State	Published - 1 Apr 2015

Keywords

Carbon materials
Microwave absorption
Nanocomposites

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10.1016/j.matlet.2015.01.015

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title = "Sandwich-structured graphene@Fe3O4@carbon nanocomposites with enhanced electromagnetic absorption properties",

abstract = "Sandwich-structured graphene@Fe3O4@carbon nanocomposites were prepared by a rational route. Transmission electron microscopy measurements show that an amorphous carbon layer is covered on the surface of graphene@Fe3O4 and the sandwich-structured graphene@Fe3O4@carbon is formed, and the TGA results indicate that the carbon content is 42.4 wt%. Compared with graphene@Fe3O4, the as-prepared graphene@Fe3O4@carbon nanocomposites exhibit enhanced microwave absorption properties in terms of both the maximum reflection loss value and the absorption bandwidth. The maximum reflection loss of graphene@Fe3O4@carbon is -30.1 dB at 14.8 GHz with a thickness of only 1.8 mm, and the absorption bandwidths with a reflection loss below -10 dB ranges from 12.1 to 17.5 GHz.",

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author = "Ying Huang and Lei Wang and Xu Sun",

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T1 - Sandwich-structured graphene@Fe3O4@carbon nanocomposites with enhanced electromagnetic absorption properties

AU - Huang, Ying

AU - Wang, Lei

AU - Sun, Xu

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Sandwich-structured graphene@Fe3O4@carbon nanocomposites were prepared by a rational route. Transmission electron microscopy measurements show that an amorphous carbon layer is covered on the surface of graphene@Fe3O4 and the sandwich-structured graphene@Fe3O4@carbon is formed, and the TGA results indicate that the carbon content is 42.4 wt%. Compared with graphene@Fe3O4, the as-prepared graphene@Fe3O4@carbon nanocomposites exhibit enhanced microwave absorption properties in terms of both the maximum reflection loss value and the absorption bandwidth. The maximum reflection loss of graphene@Fe3O4@carbon is -30.1 dB at 14.8 GHz with a thickness of only 1.8 mm, and the absorption bandwidths with a reflection loss below -10 dB ranges from 12.1 to 17.5 GHz.

AB - Sandwich-structured graphene@Fe3O4@carbon nanocomposites were prepared by a rational route. Transmission electron microscopy measurements show that an amorphous carbon layer is covered on the surface of graphene@Fe3O4 and the sandwich-structured graphene@Fe3O4@carbon is formed, and the TGA results indicate that the carbon content is 42.4 wt%. Compared with graphene@Fe3O4, the as-prepared graphene@Fe3O4@carbon nanocomposites exhibit enhanced microwave absorption properties in terms of both the maximum reflection loss value and the absorption bandwidth. The maximum reflection loss of graphene@Fe3O4@carbon is -30.1 dB at 14.8 GHz with a thickness of only 1.8 mm, and the absorption bandwidths with a reflection loss below -10 dB ranges from 12.1 to 17.5 GHz.

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KW - Nanocomposites

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JO - Materials Letters

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Sandwich-structured graphene@Fe₃O₄@carbon nanocomposites with enhanced electromagnetic absorption properties

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Keywords

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