التفاصيل البيبلوغرافية
| العنوان: |
Lightweight Chain-Typed Magnetic Fe 3 O 4 @rGO Composites with Enhanced Microwave-Absorption Properties. |
| المؤلفون: |
Qian, Congyi, Liang, Xiaohui, Wu, Mei, Zhang, Xingxin |
| المصدر: |
Nanomaterials (2079-4991); Oct2022, Vol. 12 Issue 20, p3699-N.PAG, 13p |
| مصطلحات موضوعية: |
ELECTROMAGNETIC wave absorption, IRON oxides, ELECTROMAGNETIC fields, ELECTROMAGNETIC compatibility, MAGNETIC materials, MAGNETIC fields |
| مستخلص: |
A lightweight microwave-absorbing material with a strong electromagnetic-absorption capability of practical significance in the field of electromagnetic compatibility was obtained by adjusting the ratio of Fe3O4 and rGO. A nanoparticle material with a chain-typed structure consisting of a combination of Fe3O4 and rGO was produced by a hydrothermal method under an applied magnetic field. The electromagnetic loss property of the Fe3O4@rGO composites is studied in the frequency range from 2 to 18 GHz. In addition, the reflection loss and the mechanism of microwave absorption are explored. By changing the amounts of rGO, the electromagnetic loss of the Fe3O4@rGO composites can be effectively regulated, which obtain better reflection loss. The minimum reflection loss of the Fe3O4@rGO composites is −49.4 dB at 16.2 GHz only with a thickness of 1.75 mm. Thus, the Fe3O4@rGO composites have an extremely thin thickness and a strong electromagnetic wave absorption capacity, which is a candidate for the development of lightweight magnetic absorbing materials. [ABSTRACT FROM AUTHOR] |
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