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Composition design and performance regulation of three-dimensional interconnected FeNi@carbon nanofibers as ultra-lightweight and high efficiency electromagnetic wave absorbers
Guan, Guangguang1,2,3; Yan, Liang1; Zhou, Yangtao3; Xiang, Jun1; Gao, Guojun1; Zhang, Haoyan1; Gai, Zhiqiang4; Zhang, Kaiyin5
Corresponding AuthorXiang, Jun(jxiang@just.edu.cn) ; Zhang, Kaiyin(zhangkaiyin@wuyiu.edu.cn)
2022-09-01
Source PublicationCARBON
ISSN0008-6223
Volume197Pages:494-507
AbstractHighly dispersed fine FeNi nanoparticles (NPs) encapsulated within carbon nanofibers (FeNi@CNFs) have been fabricated through electrospinning followed by preoxidation and carbonization processes. The influences of FeNi content and filler loading on the electromagnetic (EM) and microwave absorption (MA) properties of the FeNi@CNFs/paraffin wax composites are studied in detail. Benefitting from the special hierarchical micro-structure including zero-dimensional FeNi@graphitic carbon core-shell NPs, one-dimensional CNFs with short carbon nanotubes protrusions and three-dimensional conductive network, as well as the synergistic effect be-tween small-sized magnetic FeNi NPs and lightweight dielectric CNFs, the as-prepared FeNi@CNFs samples exhibit excellent MA performances at the ultralow filler loading, in which the FeNi@CNFs-2 with a filling content of only 5 wt% possesses the strongest absorbing intensity and broadest effective frequency bandwidth primarily due to better balance between EM attenuation capability and impedance matching. The minimum reflection loss (RL) reaches-31.3 dB (more than 99.9% MA) at 16.3 GHz with a small thickness of 1.7 mm, and the maximum effective absorption bandwidth (RL <-10 dB) is up to 5.6 GHz (12.0-17.6 GHz) at 1.9 mm, which are superior to those of many previously reported magnetic carbon-based hybrid absorbers. Our results demonstrate that the proper incorporation of small-sized FeNi NPs into CNFs is an efficient and promising strategy to design light-weight and high-performance EM wave absorbers.
KeywordFeNi nanoparticles Carbon nanofibers Electrospinning Microwave absorption Lightweight
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Fujian Province
DOI10.1016/j.carbon.2022.07.005
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51271059] ; Natural Science Foundation of Fujian Province[2020J01393]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000831556800004
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174742
Collection中国科学院金属研究所
Corresponding AuthorXiang, Jun; Zhang, Kaiyin
Affiliation1.Jiangsu Univ Sci & Technol, Sch Sci, Zhenjiang 212100, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
4.Jiangsu Univ Sci & Technol, Sch Elect Informat, Zhenjiang 212100, Peoples R China
5.Wuyi Univ, Coll Mech & Elect Engn, Wuyishan 354300, Peoples R China
Recommended Citation
GB/T 7714
Guan, Guangguang,Yan, Liang,Zhou, Yangtao,et al. Composition design and performance regulation of three-dimensional interconnected FeNi@carbon nanofibers as ultra-lightweight and high efficiency electromagnetic wave absorbers[J]. CARBON,2022,197:494-507.
APA Guan, Guangguang.,Yan, Liang.,Zhou, Yangtao.,Xiang, Jun.,Gao, Guojun.,...&Zhang, Kaiyin.(2022).Composition design and performance regulation of three-dimensional interconnected FeNi@carbon nanofibers as ultra-lightweight and high efficiency electromagnetic wave absorbers.CARBON,197,494-507.
MLA Guan, Guangguang,et al."Composition design and performance regulation of three-dimensional interconnected FeNi@carbon nanofibers as ultra-lightweight and high efficiency electromagnetic wave absorbers".CARBON 197(2022):494-507.
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