Efficient Synthesis of Fe3O4/PPy Double-Carbonized Core-Shell-like Composites for Broadband Electromagnetic Wave Absorption
Ever-increasing electromagnetic pollution largely affects human health, sensitive electronic equipment, and even military security, but current strategies used for developing functional attenuation materials cannot be achieved in a facile and cost-effective way. Here, a unique core-shell-like compos...
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| Veröffentlicht in: | Polymers 2024-04, Vol.16 (8), p.1160 |
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| creator | Elhassan, Ahmed Lv, Xiaoshuang Abdalla, Ibrahim Yu, Jianyong Li, Zhaoling Ding, Bin |
| description | Ever-increasing electromagnetic pollution largely affects human health, sensitive electronic equipment, and even military security, but current strategies used for developing functional attenuation materials cannot be achieved in a facile and cost-effective way. Here, a unique core-shell-like composite was successfully synthesized by a simple chemical approach and a rapid microwave-assisted carbonization process. The obtained composites show exceptional electromagnetic wave absorption (EMWA) properties, including a wide effective absorption band (EAB) of 4.64 GHz and a minimum reflection loss (RLmin) of −26 dB at 1.6 mm. The excellent performance can be attributed to the synergistic effects of conductive loss, dielectric loss, magnetic loss, and multiple reflection loss within the graphene-based core–shell-like composite. This work demonstrates a convenient, rapid, eco-friendly, and cost-effective method for synthesizing high-performance microwave absorption materials (MAMs). |
| doi_str_mv | 10.3390/polym16081160 |
| format | Article |
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| subjects | Absorption spectra Broadband Carbon Chemical synthesis Communication Composite materials Dielectric loss Electromagnetic radiation Electronic equipment Energy consumption Ethanol Fourier transforms Graphene Heat Iron oxides Microwave absorption Microwaves Polymerization Radiation Scanning electron microscopy Spectrum analysis Synergistic effect Temperature Transmission electron microscopy |
| title | Efficient Synthesis of Fe3O4/PPy Double-Carbonized Core-Shell-like Composites for Broadband Electromagnetic Wave Absorption |
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