| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Electromagnetic Wave Absorbing Behavior and Mechanism of Fe3O4-ZIF-67@C Composite Nanofibers |
| YAN Guilong1,*, TU Jun2, SUN Ruiling1, MING Xiaoran1, CHENG Jinbo1, WANG Li1, LI Zhenyu1, WU Yuanpeng1
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1 School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China
2 School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China |
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Abstract The development of electronic devices has brought convenience to people's lives, but also caused the problem of electromagnetic radiation, which makes absorbing materials a hot topic in current research. In this study, a series of Fe3O4-ZIF-67@C composite nanofibers differing in Fe3O4 content were prepared by hydrothermal method, electrospinning and high-temperature carbonization. The absorption mechanisms of the materials were found to mainly entail dielectric loss, dipole polarization, and interface polarization. When the mass fraction of Fe3O4 was 4%, the Fe3O4-ZIF-67@C nanofibers exhibited a minimum reflective loss of -52.15 dB at 5.36 GHz and a thickness of 4.3 mm, and a maximum absorption bandwidth of 7.05 GHz (4.63—11.68 GHz) at a thickness of 3.5 mm, demonstrating an excellent electromagnetic wave absorption perfor-mance and a relatively wide effective absorption band, indicating promising application potential.
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Published: 25 November 2025
Online: 2025-11-14
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2025, Vol. 39 
