中国科学院长春光学精密机械与物理研究所

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	One-pot hydrothermally prepared rGO/SiC/CoFe2O4 composites with strong microwave absorption at different thicknesses
	J. Y. Wang; S. H. Hu; Q. Tang; J. Xu; N. X. Xu; S. S. Yu; X. Y. Wang and H. W. Tian
	2022
发表期刊	Ceramics International
ISSN	0272-8842
卷号	48期号:20页码:30640-30650
摘要	Currently, to solve the problem of electromagnetic radiation, it is imperative to develop a thin, lightweight absorber, with a wide bandwidth and an excellent absorption ability. In this study, SiC and CoFe2O4 were combined on reduced graphene oxide (rGO) with immobilized rGO and SiC nanoparticles and varying amounts of CoFe2O4 nanoparticles. A facile one-pot hydrothermal technique was employed to prepare four rGO/Si/CoFe2O4 composite samples with varied CoFe2O4 concentrations. The electromagnetic properties of rGO/SiC/CoFe2O4 composites were affected by CoFe2O4 content, and CoFe2O4 content was varied to change the electromagnetic properties of composites. The rGO/SiC/CoFe2O4 composite samples were prepared at a graphene oxide (GO) mass of 0.5 g, SiC mass of 0.25 g, and CoFe2O4 mass of 1.5 g, and this composite sample exhibited thebest microwave absorption consumption. At 60 wt% of rGO/SiC/CoFe2O4 composite sample, the RLmin at 7.4 GHz with a thickness of 2.43 mm was 62.39 dB, and efficient absorption of broadband (EAB) was 1.4 GHz (6.8-8.2 GHz). The EAB was 3.2 GHz (11.8-15 GHz), and the RLmin was 59.77 dB at 13.2 GHz with a thickness of 1.39 mm. The RLmin at 17.2 GHz was 65.49 dB, and the EAB was 2.3 GHz (15.7-18 GHz), despite a thickness of only 1.06 mm. The rGO/SiC/CoFe2O4 composite comprised carbon materials, magnetic metals, and semi-conductors. High-performance microwave absorption was achieved by the introduction of more than one loss mechanism and coordination and supplementation of multicomponent functions. The proposed carbon/semi-conductor/magneticcomposite material provides a feasible solution for the preparation of excellent microwave absorbing materials in the future.
DOI	10.1016/j.ceramint.2022.07.007
URL	查看原文
收录类别	sci ; ei
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66936
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Y. Wang,S. H. Hu,Q. Tang,et al. One-pot hydrothermally prepared rGO/SiC/CoFe2O4 composites with strong microwave absorption at different thicknesses[J]. Ceramics International,2022,48(20):30640-30650.
APA	J. Y. Wang.,S. H. Hu.,Q. Tang.,J. Xu.,N. X. Xu.,...&X. Y. Wang and H. W. Tian.(2022).One-pot hydrothermally prepared rGO/SiC/CoFe2O4 composites with strong microwave absorption at different thicknesses.Ceramics International,48(20),30640-30650.
MLA	J. Y. Wang,et al."One-pot hydrothermally prepared rGO/SiC/CoFe2O4 composites with strong microwave absorption at different thicknesses".Ceramics International 48.20(2022):30640-30650.

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