Three-dimensional foam-like Fe3O4@C core-shell nanocomposites: Controllable synthesis and wideband electromagnetic wave absorption properties

doi:10.1016/j.jmmm.2020.166518

CORC > 金属研究所 > 中国科学院金属研究所

	Three-dimensional foam-like Fe3O4@C core-shell nanocomposites: Controllable synthesis and wideband electromagnetic wave absorption properties
	Meng, Xun 1; Yang, Weiwei 1; Han, Guanghui 1; Yu, Yongsheng 1; Ma, Song 2; Liu, Wei 2; Zhang, Zhidong 2
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2020-05-15
卷号	502 页码:10
关键词	Fe3O4@C 3D foam-like structure Core-shell nanocomposites Carbothermal reduction Electromagnetic wave absorption
ISSN号	0304-8853
DOI	10.1016/j.jmmm.2020.166518
通讯作者	Yang, Weiwei(yangww@hit.edu.cn) ; Yu, Yongsheng(ysyu@hit.edu.cn) ; Ma, Song(songma@imr.ac.cn)
英文摘要	Ferrite and carbon nanocomposites are regarded to be excellent electromagnetic wave absorbers due to their compatible dielectric and magnetic loss capabilities. In this article, the three-dimensional (3D) Fe3O4@C coreshell nanocomposites with foam-like structure have been successfully prepared, which would greatly promote multiple reflection/scattering of the incident microwave. By adjusting the amount of polymeric precursors, the outer carbon can be perfectly controlled within the average thickness range of 9.1-34.8 nm. Meanwhile, through the synergy between 3D foam-like Fe3O4 core and outer carbon, the impedance matching conditions of the nanocomposites can be improved. Besides, the electromagnetic wave absorptivity of the nanocomposites presents a significant dependence on the thickness of outer carbon. When the average thickness of outer carbon is 28.3 nm, the absorber shows the most excellent performance, and the minimum reflection loss (RL) value is - 55.5 dB with 2.5 mm absorber thickness. Especially, when the thickness is tuned from 1.4 mm to 5.5 mm, the Fe3O4@C exhibits efficient absorption (RL <= - 20 dB) in an ultra-wide band (14.9 GHz). Based on the amazing microwave absorption properties, this nanocomposite can be considered as an ideal absorber.
资助项目	National Natural Science Foundation of China[51571072] ; National Natural Science Foundation of China[51871078] ; National Natural Science Foundation of China[51871219] ; National Natural Science Foundation of China[51571195] ; National Natural Science Foundation of China[51590883] ; Heilongjiang Science Foundation[E2018028] ; National Key R&D Program of China[2017YFA0206301]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000521826900042
资助机构	National Natural Science Foundation of China ; Heilongjiang Science Foundation ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137788]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang, Weiwei; Yu, Yongsheng; Ma, Song
作者单位	1.Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Meng, Xun,Yang, Weiwei,Han, Guanghui,et al. Three-dimensional foam-like Fe3O4@C core-shell nanocomposites: Controllable synthesis and wideband electromagnetic wave absorption properties[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2020,502:10.
APA	Meng, Xun.,Yang, Weiwei.,Han, Guanghui.,Yu, Yongsheng.,Ma, Song.,...&Zhang, Zhidong.(2020).Three-dimensional foam-like Fe3O4@C core-shell nanocomposites: Controllable synthesis and wideband electromagnetic wave absorption properties.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,502,10.
MLA	Meng, Xun,et al."Three-dimensional foam-like Fe3O4@C core-shell nanocomposites: Controllable synthesis and wideband electromagnetic wave absorption properties".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 502(2020):10.