Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber

doi:10.1039/c9qi01577a

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	Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber
	Qu, Xinghao 1; Zhou, Yuanliang 1; Li, Xiyang 1; Javid, Muhammad 1; Huang, Feirong 1; Zhang, Xuefeng 2; Dong, Xinglong 1; Zhang, Zhidong 3
刊名	INORGANIC CHEMISTRY FRONTIERS
	2020-03-07
卷号	7 期号:5 页码:1148-1160
ISSN号	2052-1553
DOI	10.1039/c9qi01577a
通讯作者	Dong, Xinglong(dongxl@dlut.edu.cn) ; Zhang, Zhidong(zdzhang@imr.ac.cn)
英文摘要	The development of inexpensive yet high-performance microwave absorbers to attenuate electromagnetic pollution stemming from the wide application of various electrical devices is of great significance. Magnetic NiFe alloys with relatively high permeability and multiple magnetic resonances are advantageous to broaden the absorption bandwidth. Benefiting from the coatings of carbon materials, the NiFe@C composites can efficiently increase the capability of oxidation/corrosion resistance. Meanwhile, the formation of numerous hetero-interfaces between C and NiFe alloys leads to interfacial polarization. However, it is still difficult to couple their relatively strong dielectric loss with magnetic loss, resulting in impedance mismatching. In this work, NiFe alloy nanoparticles embedded in nitrogen-doped graphene layers are successfully fabricated under a mixed gas of CH4/N-2/Ar. By controlling the number of graphene layers and nitrogen doping level, the overall impedance can be effectively ameliorated. Experimental results indicate that the minimum reflection loss (R) can reach -46.89 dB at 11.96 GHz, accompanied by an effective absorption bandwidth of more than 4.1 GHz. Our work will advance the study of magnetic alloys/N-doped graphene composites for microwave absorption.
资助项目	National Natural Science Foundation of China[51331006] ; National Natural Science Foundation of China[51271044]
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000519117700005
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137754]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dong, Xinglong; Zhang, Zhidong
作者单位	1.Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Sch Mat Sci & Engn, Dalian 116023, Peoples R China 2.Hangzhou DianZi Univ, Inst Adv Magnet Mat, Hangzhou 310012, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110015, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Qu, Xinghao,Zhou, Yuanliang,Li, Xiyang,et al. Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber[J]. INORGANIC CHEMISTRY FRONTIERS,2020,7(5):1148-1160.
APA	Qu, Xinghao.,Zhou, Yuanliang.,Li, Xiyang.,Javid, Muhammad.,Huang, Feirong.,...&Zhang, Zhidong.(2020).Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber.INORGANIC CHEMISTRY FRONTIERS,7(5),1148-1160.
MLA	Qu, Xinghao,et al."Nitrogen-doped graphene layer-encapsulated NiFe bimetallic nanoparticles synthesized by an arc discharge method for a highly efficient microwave absorber".INORGANIC CHEMISTRY FRONTIERS 7.5(2020):1148-1160.