Constructing and optimizing hollow ZnxFe3-xO4@polyaniline composites as high-performance microwave absorbers

doi:10.1016/j.jcis.2020.09.120

	Constructing and optimizing hollow ZnxFe3-xO4@polyaniline composites as high-performance microwave absorbers
	Shang, Qiong 2,4; Feng, Huixia 1,2; Liu, Jianpu 2; Lian, Qing 2; Feng, Zeyu 2; Chen, Nali 1,2; Qiu, Jianhui 5; Wu, Hongjing 3
刊名	Journal of Colloid and Interface Science
	2021-02-15
卷号	584 页码:80-91
关键词	Dielectric losses Effective absorption Electrical conductivity Electromagnetic parameters In-situ chemical oxidations Microwave absorption Optimized composites Polyaniline composites Solvothermal process
ISSN号	00219797
DOI	10.1016/j.jcis.2020.09.120
英文摘要	In this study, a series of hollow ZnxFe3-xO4@polyaniline composites (ZFO@PANI) were synthesized by a facile solvothermal process and followed by in-situ chemical oxidation polymerization method, and then evaluated as microwave absorption (MA) absorbers. The effect of ZFO content on the electrical conductivity, electromagnetic parameters and MA performance of the ZFO@PANI composites was also elaborately investigated. As anticipated, the optimized composites of S2 exhibits the minimum reflection loss (RLmin) of −59.44 dB at 11.04 GHz with a matching thickness of 2.31 mm, and the broadest effective absorption bandwidth (EAB, RL 90% absorption) of up to 4.65 GHz (13.35–18.0 GHz) at 1.72 mm. Noticeably, by adjusting the thickness from 1.5 to 5.0 mm, it can be observed that its RLmin values are all much lower than −10 dB and the qualified EAB can cover the entire C, X and Ku bands. The enhanced MA performance of S2 is mainly due to the efficient synergistic effect between dielectric loss (PANI) and magnetic loss (ZFO nanosphere), and thus achieving the relative balance of impedance matching (appropriate ZFO content) and attenuation capability. Therefore, it has great prospect to be explored as attractive candidate in practical application. © 2020 Elsevier Inc.
语种	英语
出版者	Academic Press Inc.
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115827]
专题	教务处（创新创业学院）石油化工学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 3.MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an; 710072, China; 4.School of Chemistry and Chemical Engineering, Lanzhou City University, Lanzhou; 730070, China; 5.Department of Machine Intelligence and Systems Engineering Faculty of Systems Engineering, Akita Prefectural University, Akita; 015-0055, Japan
推荐引用方式 GB/T 7714	Shang, Qiong,Feng, Huixia,Liu, Jianpu,et al. Constructing and optimizing hollow ZnxFe3-xO4@polyaniline composites as high-performance microwave absorbers[J]. Journal of Colloid and Interface Science,2021,584:80-91.
APA	Shang, Qiong.,Feng, Huixia.,Liu, Jianpu.,Lian, Qing.,Feng, Zeyu.,...&Wu, Hongjing.(2021).Constructing and optimizing hollow ZnxFe3-xO4@polyaniline composites as high-performance microwave absorbers.Journal of Colloid and Interface Science,584,80-91.
MLA	Shang, Qiong,et al."Constructing and optimizing hollow ZnxFe3-xO4@polyaniline composites as high-performance microwave absorbers".Journal of Colloid and Interface Science 584(2021):80-91.