A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents

doi:10.1016/j.jmat.2024.04.007

IMR OpenIR

	A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents
	Guan, Guangguang 1,2; Li, Jiebai 1,2; Li, Xiaoqiang 3; Xiang, Jun 4; Zhou, Yangtao 1
通讯作者	Xiang, Jun(jxiang@just.edu.cn) ; Zhou, Yangtao(ytzhou@imr.ac.cn)
	2025-03-01
发表期刊	JOURNAL OF MATERIOMICS
ISSN	2352-8478
卷号	11 期号:2 页码:10
摘要	It is still an enormous challenge to regulate microstructure of pure carbonaceous electromagnetic (EM) wave absorbents in order to gain superior wideband microwave absorption (MA) with environmentally adaptive ability. Herein, the novel pure cellulose-derived graphite carbon materials (CGC) with abundant defects were fabricated via the self-assembly strategy combined with simple carbonization for the first time. The EM and MA performance of as-prepared CGC with different carbonization temperatures were studied in detail. The minimum reflection loss of CGC was up to- 46.2 dB (over 99.99% MA) at only 1.42 mm, and the maximum effective absorption bandwidth (EABmax, max , RL <- 10 dB) was as wide as 6.32 GHz. The greatly improved MA of pure carbon materials outperformed those of many previously reported carbon-based composite absorbents with tedious preparation process. The excellent MA property was attributed to the optimal synergy of good impedance matching and satisfactory EM attenuation capability. Besides, the CGC still retains a strong and broadband MA ability in the simulated real harsh environmental conditions (acid rain/alkaline solution, salt spray and strong UV exposure). Hence, the CGC is believed to be a very promising candidate as high-efficiency EM wave absorbents with wide frequency and excellent environmental adaptability for practical application. (c) 2024 The Authors. Published by Elsevier B.V. on behalf of The Chinese Ceramic Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Graphitic carbon Cellulose Microwave absorption Environment adaptability Polarization Impedance matching
资助者	Research foundation of SYNL
DOI	10.1016/j.jmat.2024.04.007
收录类别	SCI
语种	英语
资助项目	Research foundation of SYNL
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001329622300001
出版者	ELSEVIER
引用统计	被引频次：2[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/321006/190437
专题	中国科学院金属研究所
通讯作者	Xiang, Jun; Zhou, Yangtao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Beijing Univ Technol, Inst Mat Sci & Engn, Beijing 100124, Peoples R China 4.Jiangsu Univ Sci & Technol, Sch Sci, Zhenjiang 212100, Peoples R China
推荐引用方式 GB/T 7714	Guan, Guangguang,Li, Jiebai,Li, Xiaoqiang,et al. A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents[J]. JOURNAL OF MATERIOMICS,2025,11(2):10.
APA	Guan, Guangguang,Li, Jiebai,Li, Xiaoqiang,Xiang, Jun,&Zhou, Yangtao.(2025).A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents.JOURNAL OF MATERIOMICS,11(2),10.
MLA	Guan, Guangguang,et al."A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents".JOURNAL OF MATERIOMICS 11.2(2025):10.