Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires

doi:10.1016/j.carbon.2020.01.081

CORC > 金属研究所 > 中国科学院金属研究所

	Enhanced wideband microwave absorption of hollow carbon nanowires derived from a template of Al4C3@C nanowires
	Hua, An 1,3; Li, Yong 1,3; Pan, Desheng 1,3; Luan, Jian 1,3; Wang, Yu 2; He, Jun 2; Tang, Shufang 1,3; Geng, Dianyu 1,3; Ma, Song 1,3; Liu, Wei 1,3
刊名	CARBON
	2020-05-01
卷号	161 页码:252-258
ISSN号	0008-6223
DOI	10.1016/j.carbon.2020.01.081
通讯作者	Ma, Song(songma@imr.ac.cn)
英文摘要	The 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.
资助项目	Natural 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研究方向	Chemistry ; Materials Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000523561700028
资助机构	Natural Science Foundation of China (NSFC) ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137767]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ma, Song
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Cent Iron & Steel Res Inst, Div Funct Mat Res, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 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.