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Growth of Fe 3 O 4 Nanorod Arrays on Graphene Sheets for Application in Electromagnetic Absorption Fields
Author(s) -
Zhang Huanming,
Zhu Chunling,
Chen Yujin,
Gao Hong
Publication year - 2014
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201402088
Subject(s) - nanorod , graphene , materials science , absorption (acoustics) , electromagnetic radiation , optoelectronics , nanotechnology , optics , composite material , physics
A facial strategy is developed to fabricate a three‐dimensional (3D) Fe 3 O 4 nanorod array/graphene architecture, in which Fe 3 O 4 nanorods with a length and diameter of about 600 and 100 nm, respectively, are grown on both surfaces of the graphene sheets. The measured electromagnetic parameters show that the 3D architecture exhibits excellent electromagnetic wave‐absorption properties, that is, more than 99 % of electromagnetic wave energy can be attenuated by the 3D architecture if it is added in only 20 wt % of the paraffin matrix, as the thickness of the absorber is in the range from 2.38 to 5.00 mm. The analysis of the electromagnetic (EM) absorption mechanism reveals that the excellent EM absorption properties are related to the special 3D architecture, and therefore, the construction of graphene‐based 3D heteronanostructures is effective in obtaining lightweight EM absorbers with strong absorption properties.