Microwave absorption performance of porous carbon particles modified by nickel with different morphologies

doi:10.1016/j.jmst.2022.07.036

IMR OpenIR

	Microwave absorption performance of porous carbon particles modified by nickel with different morphologies
	Shen, Zhangtao 1,2; Zu, Yapei 2; Chen, Yuqiu 2; Gong, Jun 2; Sun, Chao 2
通讯作者	Zu, Yapei(ypzu@imr.ac.cn) ; Gong, Jun(jgong@imr.ac.cn)
	2023-02-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	137 页码:79-90
摘要	In this work, porous carbon particles were prepared from wheat flour by pyrolysis and activation. Through the subsequent coprecipitation and electroless plating, the surface and pores of carbon particles were modified by nickel-rich particles with different morphologies. Several loss mechanisms, including dielec-tric loss, magnetic loss, multiple reflection and scattering loss, were used to assess the attenuation ability to incident electromagnetic waves of these composite particles. The result shows that the chain-shaped morphology of nickel can provide the highest dielectric loss. Under the filler loading of 20 wt.%, the minimum reflection loss (RLmin) reached-38.42 dB at 13.2 GHz, and the maximum effective absorption bandwidth (EAB(max)) was 5.2 GHz with a matching thickness of 2 mm. The excellent performance of the composite particles is attributed to the synergistic effect of outstanding impedance matching and supe-rior electromagnetic loss ability caused by the chain structure. The result shows that the morphology of modifiers in carbon-based composites is important to improve microwave absorption performance, and this work provides inspiration for the design of high-performance porous carbon-based composites. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Porous carbon particles Nickel morphology Chain -shaped Microwave absorption performance
资助者	Shenyang Major Achievements Transformation Project
DOI	10.1016/j.jmst.2022.07.036
收录类别	SCI
语种	英语
资助项目	Shenyang Major Achievements Transformation Project[20-203-5-18]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000865411300003
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/176292
专题	中国科学院金属研究所
通讯作者	Zu, Yapei; Gong, Jun
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shen, Zhangtao,Zu, Yapei,Chen, Yuqiu,et al. Microwave absorption performance of porous carbon particles modified by nickel with different morphologies[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,137:79-90.
APA	Shen, Zhangtao,Zu, Yapei,Chen, Yuqiu,Gong, Jun,&Sun, Chao.(2023).Microwave absorption performance of porous carbon particles modified by nickel with different morphologies.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,137,79-90.
MLA	Shen, Zhangtao,et al."Microwave absorption performance of porous carbon particles modified by nickel with different morphologies".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 137(2023):79-90.