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Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires
Hua, An1,2; Li, Yong1,2; Pan, Desheng1,2; Luan, Jian1,2; Wang, Yu3; He, Jun3; Tang, Shufang1,2; Geng, Dianyu1,2; Ma, Song1,2; Liu, Wei1,2; Zhang, Zhidong1,2
Corresponding AuthorMa, Song(songma@imr.ac.cn)
2020-05-01
Source PublicationCARBON
ISSN0008-6223
Volume161Pages:252-258
AbstractThe hollow carbon nanowires with large number of surface defects and specific surface have been prepared by de-alloying Al4C3@C nanowires. Compared to the graphene-based or carbon-nanotube-based electromagnetic wave-absorbing composites reported previously, the hollow carbon nanowires achieve enhanced wideband microwave absorption due to enhanced impedance match and increased electric dipoles, which are related to the defects on the surface of the distinctive hollow structure. As a result, the complex dielectric and microwave absorption properties of the hollow carbon nanowires are significantly optimized in 2-18 GHz range. The composites filled with 50 wt% of hollow carbon nanowires in paraffin show a minimum reflection loss (RL) of -47.1 dB at 15.7 GHz with a thickness of 1.9 mm and 5.5 GHz (RL < -10 dB) absorbing bandwidth with thickness of 2 mm, being one of the most competitive carbon-based absorbers. This study provides an effective way to improve the microwave performance of the hollow carbon nanowires by template method. (C) 2020 Elsevier Ltd. All rights reserved.
Funding OrganizationNatural Science Foundation of China (NSFC) ; National Key R&D Program of China
DOI10.1016/j.carbon.2020.01.081
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China (NSFC)[51871219] ; Natural Science Foundation of China (NSFC)[51571195] ; Natural Science Foundation of China (NSFC)[51590883] ; National Key R&D Program of China[2018YFF01013604]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000523561700028
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137765
Collection中国科学院金属研究所
Corresponding AuthorMa, Song
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Cent Iron & Steel Res Inst, Div Funct Mat Res, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Hua, An,Li, Yong,Pan, Desheng,et al. Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires[J]. CARBON,2020,161:252-258.
APA Hua, An.,Li, Yong.,Pan, Desheng.,Luan, Jian.,Wang, Yu.,...&Zhang, Zhidong.(2020).Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires.CARBON,161,252-258.
MLA Hua, An,et al."Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires".CARBON 161(2020):252-258.
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