Tunable microwave absorption properties of nickel-carbon nanofibers prepared by electrospinning

doi:10.1016/j.ceramint.2018.10.242

	Tunable microwave absorption properties of nickel-carbon nanofibers prepared by electrospinning
	Shen, Yongqian 1; Wei, Yupeng 2; Ma, Jiqiang 1; Li, Qinglin 1; Li, Jian 3; Shao, Wenjie 1; Yan, Pengze 1; Huang, Guowei 1; Du, Xueyan 1
刊名	CERAMICS INTERNATIONAL
	2019-02-15
卷号	45 期号:3 页码:3313-3324
关键词	Nickel-carbon nanofiber Electrospinning Electromagnetic characterization Microwave absorption
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2018.10.242
英文摘要	The nickel-carbon nanofibers (Ni-C NFs) were fabricated by the electrospinning of poly(vinyl alcohol) (PVA) and nickel acetate tetrahydrate (NiAc) solution precursor with succedent PVA pyrolyzation and calcination process. The microwave absorption performance and electromagnetic (EM) parameters of the NFs were researched over the frequency range of 2.0-18.0 GHz. Both the impedance matching and EM wave absorption properties of the Ni-C NFs were improved by changing the carbonization temperature. The effect of graphitization degree on reflection loss (RL) and the possible loss mechanisms were directly displayed in the comparative study of each sample. The optimal RL value of - 44.9 dB and an effective frequency bandwidth of 3.0 GHz under a thickness of 3.0 mm can be reached by a sample calcined at 650 degrees C. These lightweight Ni-C NFs composites can be promising candidates for EM wave absorbers due to the combination of multiple loss mechanisms, nano-size effect and good impedance matching between Ni nanoparticles and CNFs.
资助项目	National Natural Science Foundation of China, China[51363015]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000456225900051
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32095]
专题	材料科学与工程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研究生院
通讯作者	Du, Xueyan
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Key Lab Nonferrous Met Alloys & Proc,Minist Educ, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China 3.Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Shen, Yongqian,Wei, Yupeng,Ma, Jiqiang,et al. Tunable microwave absorption properties of nickel-carbon nanofibers prepared by electrospinning[J]. CERAMICS INTERNATIONAL,2019,45(3):3313-3324.
APA	Shen, Yongqian.,Wei, Yupeng.,Ma, Jiqiang.,Li, Qinglin.,Li, Jian.,...&Du, Xueyan.(2019).Tunable microwave absorption properties of nickel-carbon nanofibers prepared by electrospinning.CERAMICS INTERNATIONAL,45(3),3313-3324.
MLA	Shen, Yongqian,et al."Tunable microwave absorption properties of nickel-carbon nanofibers prepared by electrospinning".CERAMICS INTERNATIONAL 45.3(2019):3313-3324.