Journal
SYNTHETIC METALS
Volume 265, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2020.116407
Keywords
MnZn ferrite; Reduced graphene oxide; Hierarchical structure; Microwave absorption
Funding
- National Natural Science Foundation of China [51871049]
- Fundamental Research Funds for the Central Universities [2017YFB0702303]
- Liao Ning Revitalization Talents Program [XLYC1807076]
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Reduced graphene oxide/MnZn ferrite (rGO/MZF) binary hybrids were synthesized via a facile solvothermal route. The effect of different amount of rGO on microstructure, morphology, magnetic and microwave absorption performance of rGO/MZF hybrids had been studied in detail. The results indicated that MZF microspheres with various morphologies and sizes were uniformly anchored onto the surface of rGO in all rGO/MZF composites. The dielectric and magnetic property of rGO/MZF composites could be simultaneously optimized by tuning the mass ratio of rGO. For rGO/MZF (1:6) sample, the optimal value of reflection loss (RL) could attain -60.9 dB at 12.4 GHz when the thickness was 2.75 mm. Moreover, the effective absorption bandwidth (EAB) could reach 5.6 GHz (12.4 - 18.0 GHz) at 2.38 mm, which almost covered the K band. And the possible microwave absorption mechanism was also discussed. Considering the excellent microwave absorption performance, the rGO/MZF composite could be applied as a newly efficient microwave absorbing materials.
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