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Synthesis of CoFe2O4/RGO nanocomposites by click chemistry and electromagnetic wave absorption properties
- Source :
- Journal of Materials Science: Materials in Electronics. 27:9278-9285
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- Cobalt ferrite/reduced graphene oxide (CoFe2O4/RGO) nanocomposites were initially prepared by the interaction of alkyne-functionalized CoFe2O4 NPs and azide-functionalized graphene oxide (GO–N3) via the Cu (I)-catalyzed click reaction. The morphology and structure of CoFe2O4/RGO were investigated by means of XRD, FTIR, TGA, TEM, SEM and the electromagnetic parameters were measured by vector network analyzer. For CoFe2O4/RGO composites with click reaction, the minimum reflection loss could reach −40 dB at 6.8 GHz with a matching thickness of 4.0 mm, and also it had a bandwidth below −10 dB ranging from 5.8 to 8.5 GHz. The CoFe2O4/RGO composites with click reaction exhibited better microwave absorbing performance than the physical mixture. Furthermore, the covalent ligation between CoFe2O4 NPs and graphene oxide could make the composites have a promising future in electromagnetic wave absorption materials.
- Subjects :
- 010302 applied physics
Nanocomposite
Materials science
Graphene
Reflection loss
Oxide
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
chemistry.chemical_compound
chemistry
law
Covalent bond
0103 physical sciences
Click chemistry
Electrical and Electronic Engineering
Fourier transform infrared spectroscopy
Composite material
0210 nano-technology
Microwave
Subjects
Details
- ISSN :
- 1573482X and 09574522
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science: Materials in Electronics
- Accession number :
- edsair.doi...........490ace5d39db4e950040f5e56ce76be8