Design and synthesis of magnetic porous carbon nanofibers with excellent microwave absorption

doi:10.1016/j.jallcom.2022.163971

IR > 研究生院

	Design and synthesis of magnetic porous carbon nanofibers with excellent microwave absorption
	Shen, Yongqian1 ; Zhang, Fan 1; Song, Pengfei 1; Zhang, Yuchen 1; Zhang, Ting1 ; Wen, Xiaoqian 1; Ma, Jiqiang1 ; Zhang, Dong2 ; Du, Xueyan1
	2022-05-15
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	903
摘要	The magnetic porous carbon nanofibers (CNFs) are highly desirable due to the excellent reflection loss (RL) and impedance matching in microwave absorption applications. Herein, the porous Ni/NiO/CNFs were fabricated by electrospinning combined with vacuum calcination and etching technology. Porous Ni/NiO/CNFs with different electromagnetic (EM) parameters and impedance matching could be easily obtained by adjusting the calcination temperature. On account of the synergistic loss mechanism composed of magnetic loss and dielectric loss leads to excellent impedance matching, the porous structure caused multiple reflection and scattering of incident electromagnetic waves (EMW), combined with the polarization loss between different components, the as-prepared materials exhibited enhanced EMW absorbing property compared with traditional microwave absorbers (MAs). The resulting porous Ni/NiO/CNFs obtained at 650 °C exhibited the optimal EMW absorption performance with an RL of −47.9 dB at 9.5 GHz and broad effective absorption bandwidth (EAB) of 3.5 GHz with a thickness of 3.0 mm. This work provides a mentality for multi-component loss mechanism and rational structure design of CNFs-based absorbing materials. © 2022
关键词	Calcination Carbon nanofibers Dielectric losses Etching Impedance matching (electric) Magnetism Microwaves Polarization Porous materials Carbon nanofibres Electromagnetic impedance Electromagnetic parameters Impedance matchings Loss mechanisms Microwave absorption Porous carbon nanofibers Porous Ni Reflection loss Vacuum calcination
DOI	10.1016/j.jallcom.2022.163971
收录类别	EI ; SCIE
语种	英语
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:000779658800001
出版者	Elsevier Ltd
EI入藏号	20220511581991
EI主题词	Electrospinning
EI分类号	701.2 Magnetism: Basic Concepts and Phenomena ; 708.1 Dielectric Materials ; 711 Electromagnetic Waves ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 819.3 Fiber Chemistry and Processing ; 933 Solid State Physics ; 951 Materials Science
来源库	WOS
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158029
专题	研究生院材料科学与工程学院能源与动力工程学院石油化工学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Shen, Yongqian; Du, Xueyan
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Shen, Yongqian,Zhang, Fan,Song, Pengfei,et al. Design and synthesis of magnetic porous carbon nanofibers with excellent microwave absorption[J]. Journal of Alloys and Compounds,2022,903.
APA	Shen, Yongqian.,Zhang, Fan.,Song, Pengfei.,Zhang, Yuchen.,Zhang, Ting.,...&Du, Xueyan.(2022).Design and synthesis of magnetic porous carbon nanofibers with excellent microwave absorption.Journal of Alloys and Compounds,903.
MLA	Shen, Yongqian,et al."Design and synthesis of magnetic porous carbon nanofibers with excellent microwave absorption".Journal of Alloys and Compounds 903(2022).