Journal
MATERIALS LETTERS
Volume 91, Issue -, Pages 209-212Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2012.09.097
Keywords
Carbon materials; Nanoparticles; Nanocomposites; Microwave absorbing; Reduced graphene oxide
Funding
- National Basic Research Program of China [2010CB934700]
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The reduced graphene oxide (r-GO) coated with Fe3O4 composite was synthesized through a facile method involving decomposition of Fe(OH)(3) in argon atmosphere and reduction in hydrogen and argon mixture atmosphere. The Fe3O4 particles evenly distributed on r-GO, with the diameters from 10 nm to 40 nm, are monocrystalline. The composite demonstrates a reflection loss below -10 dB in 14.3-18 GHz range, and the maximum absorption of -22.2 dB at 17.3 GHz. The microwave absorption of r-GO/Fe3O4 nanocomposites is attributed to relaxation and polarization of the residual groups and defect of graphene and polarization attributed to the presence of Fe2+ ions in Fe3O4. (c) 2012 Elsevier B.V. All rights reserved.
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