Porous corn-like Fe3O4 nanosheets decorated fluffy graphene nano-composites (Fe3O4 @GNS) were synthesized. The electromagnetic parameters were obtained from the composites that were combined with 80 wt% paraffin. The results showed that the nanocomposites exhibited a maximum RL of − 50.6 dB at 9.12 GHz when the corresponding thickness was 3.4 mm, and the effective frequency bandwidth (RL ≤ − 10dB) was 4.64 GHz. The corresponding attenuation coefficient was 273 at 9.12 GHz. The microwave absorption mechanism mainly comes from the combined effect of dielectric loss and magnetic loss. In addition, the special structure composed of porous nanosheets and fluffy graphene played a key role in improving the microwave absorption performance.
Journal of Materials Science: Materials in Electronics – Springer Journals
Published: May 30, 2018
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