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Fe3O4@SiO2 nanoparticles wrapped with polypyrrole (PPy) aerogel: A highly performance material as excellent electromagnetic absorber.
- Source :
-
Materials Letters . Jun2018, Vol. 221, p93-96. 4p. - Publication Year :
- 2018
-
Abstract
- Massive efforts have been focused on effective electromagnetic absorbing materials, which have promising applications in suppressing or eliminating the electromagnetic radiation. In this study, Fe 3 O 4 @SiO 2 @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 Fe 3 O 4 @SiO 2 @PPy composites have a huge potential for application as advanced electromagnetic absorber with the advantages of strong absorption, wide bandwidth and low density. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 221
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 128852579
- Full Text :
- https://doi.org/10.1016/j.matlet.2018.03.079