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

文献类型：期刊论文

作者Meng, Xun1; Yang, Weiwei1; Han, Guanghui1; Yu, Yongsheng1; Ma, Song2; Liu, Wei2; Zhang, Zhidong2
刊名JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
出版日期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
DOI10.1016/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
WOS记录号WOS:000521826900042
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Heilongjiang Science Foundation ; National Key R&D Program of China
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.

入库方式： OAI收割

来源：金属研究所

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