Electrospun Synthesis of Reduced Graphene Oxide (RGO)/NiZn Ferrite Nanocomposites for Excellent Microwave Absorption Properties
Journal Article
·
· Journal of Superconductivity and Novel Magnetism
- National Engineering Technology Research Center for Magnetic Materials, BGRIMM (China)
- Katholieke Universiteit Leuven, Department of Materials Engineering (Belgium)
In this work, NiZn ferrite nanofibers were fabricated via electrospinning technique, followed by physical conversion into reduced graphene oxide (RGO)/NiZn ferrite nanocomposites. The whole graphene nanosheets were uniformly decorated with these magnetic nanocrystals without aggregation. The obtained ternary composite was characterized by various instruments for the chemical composition and microstructure. The results show that RGO/NiZn ferrite nanocomposites have remarkable improvements in both permittivity and permeability, which can be attributed to the combination of the good conductivity of light-weight graphene and high magnetocrystalline anisotropy of NiZn ferrites, thus significantly improving microwave absorption properties. With a matching thickness of only 2.0 mm, the reflection loss of superior sample of RGO/Ni{sub 0.7}Zn{sub 0.3}Fe{sub 2}O{sub 4} hybrid can reach − 37.71 dB at 12.5 GHz, and a reflection loss exceeding 10 dB absorption bandwidth can achieve 3.68 GHz. This indicates that the RGO/NiZn ferrite composite is an excellent and promising microwave absorbent with good absorption property, thin thickness, and wide absorption bandwidth.
- OSTI ID:
- 22922926
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 8 Vol. 32; ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
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