Controllable synthesis of porous carbon@Fe20Ni80 composites with improved microwave absorption performance

doi:10.1016/j.compositesb.2023.110710

IMR OpenIR

	Controllable synthesis of porous carbon@Fe20Ni80 composites with improved microwave absorption performance
	Shen, Zhangtao 1,2; Zu, Yapei 2; Ma, Song 3; Chen, Yuqiu 2; Zhang, Zhidong 3; Gong, Jun 2; Sun, Chao 2
通讯作者	Zu, Yapei(ypzu@imr.ac.cn) ; Gong, Jun(jgong@imr.ac.cn)
	2023-06-15
发表期刊	COMPOSITES PART B-ENGINEERING
ISSN	1359-8368
卷号	259 页码:13
摘要	The two-component composites with porous carbon and magnetic metals exhibit a promising application prospect in microwave absorption due to their superior impedance matching and excellent loss ability. Herein, a novel process combined sol-gel and in-situ pyrolysis methods was proposed to prepare a series of porous carbon@Fe20Ni80 composites. The structure and composition of composites were controlled by adjusting pyrolysis temperature and doping amount of Fe20Ni80 for achieving an improvement on microwave absorption performance. Under the optimal Fe20Ni80 doping amount of 2 mmol, the composite pyrolyzed at 800 degrees C shows the highest performance. With 15 wt% filler loading, the composite achieves the minimum reflection loss value (RLmin) of-39.5 dB at 6.7 GHz with a thickness of 3 mm. Moreover, under the optimal matching thickness of 2.2 mm, the maximum effective absorption bandwidth (EABmax) reaches 5.4 GHz (8.0-13.4 GHz), covering the whole X-band. The porous structure is maintained at appropriate pyrolysis temperature, which optimizes the impedance matching of materials. The porous carbon matrix with partial graphitization exhibits the dielectric loss ability to electromagnetic waves. In addition, the introduction of Fe20Ni80 endows the composite with magnetic loss ability. This study develops an avenue for the preparation of two-component composites with porous carbon and magnetic metals and has potential application in microwave absorption.
关键词	Porous carbon-based composites Fe20Ni80 Wheat flour Microwave absorption performance
DOI	10.1016/j.compositesb.2023.110710
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Composites
WOS记录号	WOS:001042619400001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：28[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/321006/178730
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 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shen, Zhangtao,Zu, Yapei,Ma, Song,et al. Controllable synthesis of porous carbon@Fe20Ni80 composites with improved microwave absorption performance[J]. COMPOSITES PART B-ENGINEERING,2023,259:13.
APA	Shen, Zhangtao.,Zu, Yapei.,Ma, Song.,Chen, Yuqiu.,Zhang, Zhidong.,...&Sun, Chao.(2023).Controllable synthesis of porous carbon@Fe20Ni80 composites with improved microwave absorption performance.COMPOSITES PART B-ENGINEERING,259,13.
MLA	Shen, Zhangtao,et al."Controllable synthesis of porous carbon@Fe20Ni80 composites with improved microwave absorption performance".COMPOSITES PART B-ENGINEERING 259(2023):13.