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Enhanced Electromagnetic Wave Absorption of Three-Dimensional Porous Fe3O4/C Composite Flowers
Abstract
Abstract Magnetite (Fe3O4)/carbon (C) composite flowers with an average size of 4–6 μm were prepared through a facile route including a solvothermal approach and a carbon reduction process. The resultant Fe3O4/C composites are porous and exhibit a three-dimensional (3D) flower-like morphology with the core–shell Fe3O4@C nanoparticles hybridized by amorphous carbon sheets. The epoxy resin composites containing 50 wt % 3D porous Fe3O4/C composite flowers display an optimal reflection loss (RL) value of −54.6 dB at 5.7 GHz at a thin thickness of 4.27 mm and the effective bandwidth with RL < −10 dB reaches 6.0 GHz at a thickness of 2.1 mm. These enhanced EM wave absorption performances are attributed to the synergistic effects of Fe3O4 and carbon as well as the structural advantages, e.g., three-dimensional structure with large surface area, porous and core–shell structures of Fe3O4/C flowers. These results suggest the 3D porous Fe3O4/C composite flowers designed here can serve as ideal candidates for high-performance EM wave absorption.
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Cited by
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Liu, H., Li, Q., Zhang, S., Yin, R., Liu, X., He, Y., Dai, K., Shan, C., Guo, J., Liu, C., et al. (2018) · Journal of Materials Chemistry C · doi:10.1039/c8tc04079f · Cited by 709
Self-citationQi, H., Teng, M., Liu, M., Liu, S., Li, J., Yu, H., Teng, C., Huang, Z., Liu, H., Shao, Q., et al. (2019) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2018.12.047 · Cited by 640
Self-citationA review on carbon/magnetic metal composites for microwave absorption
Wang, B., Wu, Q., Fu, Y., & Liu, T. (2021) · Journal of Materials Science & Technology · doi:10.1016/j.jmst.2020.12.078 · Cited by 616
Wu, N., Xu, D., Wang, Z., Wang, F., Liu, J., Liu, W., Shao, Q., Liu, H., Gao, Q., & Guo, Z. (2019) · Carbon · doi:10.1016/j.carbon.2019.01.028 · Cited by 490
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Metadata
- Authors
- Wu, N., Liu, C., Xu, D., Liu, J., Liu, W., Shao, Q., & Guo, Z.
- Venue
- ACS Sustainable Chemistry & Engineering
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-08-02
- Volume
- 6
- Issue
- 9
- Pages
- 12471-12480
- ISSN
- 2168-0485 (ISSN-L)
- OpenAlex
- W2887967425
- Cited by
- 368
- References
- 0
- FWCI
- 15.09
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wu, N., Liu, C., Xu, D., Liu, J., Liu, W., Shao, Q., & Guo, Z. (2018). Enhanced Electromagnetic Wave Absorption of Three-Dimensional Porous Fe3O4/C Composite Flowers. ACS Sustainable Chemistry & Engineering. https://doi.org/10.1021/acssuschemeng.8b03097
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