Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
819995 | Composites Science and Technology | 2016 | 9 Pages |
Abstract
The current study fabricated magnetic functional graphene oxide (MFGO) and magnetic functional reduced graphene oxide (MFRGO) by relying on FeCl4â magnetic anion confined to cationic 1-methyl imidazolium to absorb electromagnetic interference pollution. MFGO and MFRGO were characterized by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, and field emission scanning electron microscopy. As a microwave-absorbing material, (MFGO)/epoxy resin composite was prepared using 10%-50% (wt) MFGO at thicknesses of 1-5 mm. The composites showed excellent microwave absorption in the microwave range of 8.0-12.0 GHz. The composite with 40% (wt) MFGO at 4 mm in thickness displayed several broad absorption bands. The strongest absorbing peak achieved a maximum absorption of â14.83 dB at 8.62 GHz and the maximum reflection loss was â25.21 dB at 8.62 GHz. When compared to with graphene oxide composites, both the MFGO and MFRGO composites exhibited significantly greater microwave absorption over the X band frequency range.
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Authors
Elaheh Kowsari, Mohadeseh Mohammadi,