Microwave absorbing characteristics of Fe3O4@SiO2core-shell polyaniline-based composites

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Abstract

In this study, Fe3O4@SiO2 core-shell/polyaniline composites were successfully prepared by mechanical and chemical methods. The crystalline structure, morphology, magnetic and microwave absorption property of the Fe3O4@SiO2 core-shell polyaniline-based composites were investigated with X-ray diffraction, scanning electron microscope, permagraph and vector network analyzer, respectively. The results indicate the composites of 4 wt% Fe3O4@SiO2 core-shell filleras a potential candidate for X-band electromagnetic absorbing material. The frequency bands for reflection loss below -10 dB (90% microwave absorption) areobtained from 8.0 to 12.2 GHz at the thickness of 2 to 5 mm. This enhancement could be attributed to the addition of Fe3O4@SiO2 core-shell as a filler.

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Yusmaniar, Erdawati, Sosiati, H., Budi, S., Alaydrus, M., & Handoko, E. (2021). Microwave absorbing characteristics of Fe3O4@SiO2core-shell polyaniline-based composites. Materials Research Express, 8(4). https://doi.org/10.1088/2053-1591/abf52a

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