Journal
MATERIALS LETTERS
Volume 221, Issue -, Pages 93-96Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.03.079
Keywords
Conducting polymer; Nanoparticles; Electromagnetic absorption; Microstructure
Funding
- National Key Research and Development Program [2016YFA0202900]
- Army Advanced Research fund of China [9140C950205150C95394, FD2015008]
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Massive efforts have been focused on effective electromagnetic absorbing materials, which have promising applications in suppressing or eliminating the electromagnetic radiation. In this study, Fe3O4@SiO2@PPy composites were prepared via a facile one-pot polyreaction. The results demonstrate that the composites loaded with 30 wt% possess an excellent electromagnetic absorbing property. Specifically, the minimum reflection loss value is -56.90 dB at 10.41 GHz at an absorber thickness of 3.7 mm. The broadest effective frequency bandwidth (reflection loss less than -10 dB) is 6.38 GHz at an absorber thickness of 3 mm. The outstanding performance implies that the Fe3O4@SiO2@PPy composites have a huge potential for application as advanced electromagnetic absorber with the advantages of strong absorption, wide bandwidth and low density. (C) 2018 Elsevier B.V. All rights reserved.
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