Magnetic nitrogen-doped carbon nanofibers containing homogeneously dispersed CoFe2O4 nanoparticles with lightweight and efficient microwave absorption performance

doi:10.1016/j.jallcom.2023.171450

IMR OpenIR

	Magnetic nitrogen-doped carbon nanofibers containing homogeneously dispersed CoFe2O4 nanoparticles with lightweight and efficient microwave absorption performance
	Li, Xiaoqiang 1; Yu, Chuanjin 1; Guan, Guangguang 2,3; Wang, Ping 1; Zheng, Xiaolei 1; Shen, Chenjie 1; Wang, Qun 1
通讯作者	Wang, Qun(wangq@bjut.edu.cn)
	2023-11-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	965 页码:13
摘要	Homogeneously dispersed ultrafine CoFe2O4 nanoparticles embedded within N-doped carbon nanofibers (named as CFO@NCNFs) have been fabricated via electrospinning and following heat treatment procedures. The dielectric and magnetic parameters of CFO@NCNFs/paraffin wax composites are regulated through adjusting the concentration of CoFe2O4 to obtain good impedance matching and excellent microwave absorption (MA) properties. Benefiting from the unique structure involving CoFe2O4 @onion-like carbon nanospheres and 3D conductive NCNFs network, as well as the synergistic mechanism between ultrasmall magnetic CoFe2O4 nano-particles and light mass dielectric NCNFs. The CFO@NCNFs-5 exhibit outstanding MA properties at only 20 wt% filler loading and minimum reflection loss (RL) achieves-47.9 dB (surpass 99.9% MA) at 9.2 GHz with a thin thickness of merely 1.7 mm, and the corresponding effective absorption bandwidth (RL <-10 dB) achieves 5.4 GHz (6.5-11.9 GHz). Moreover, the effective absorption bandwidth (EAB) can be obtained in multiband (3.9-18.0 GHz) by adjusting the thickness of sample layer. Our work indicates that the appropriate incorporation of ultrafine CoFe2O4 nanoparticles encapsulated in NCNFs is a versatile and high-efficiency strategy to integrate lightweight and excellent properties of magnetic carbon-based absorbers.
关键词	N-doped Carbon nanofibers Electromagnetic CoFe 2 O 4 nanoparticles Microwave absorption
资助者	National Key Research Program
DOI	10.1016/j.jallcom.2023.171450
收录类别	SCI
语种	英语
资助项目	National Key Research Program[2016YFB1200602 -37]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001048762400001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178889
专题	中国科学院金属研究所
通讯作者	Wang, Qun
作者单位	1.Beijing Univ Technol, Inst Mat Sci & Engn, Beijing 100124, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaoqiang,Yu, Chuanjin,Guan, Guangguang,et al. Magnetic nitrogen-doped carbon nanofibers containing homogeneously dispersed CoFe2O4 nanoparticles with lightweight and efficient microwave absorption performance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,965:13.
APA	Li, Xiaoqiang.,Yu, Chuanjin.,Guan, Guangguang.,Wang, Ping.,Zheng, Xiaolei.,...&Wang, Qun.(2023).Magnetic nitrogen-doped carbon nanofibers containing homogeneously dispersed CoFe2O4 nanoparticles with lightweight and efficient microwave absorption performance.JOURNAL OF ALLOYS AND COMPOUNDS,965,13.
MLA	Li, Xiaoqiang,et al."Magnetic nitrogen-doped carbon nanofibers containing homogeneously dispersed CoFe2O4 nanoparticles with lightweight and efficient microwave absorption performance".JOURNAL OF ALLOYS AND COMPOUNDS 965(2023):13.