Optimizing the electromagnetic wave absorption performances of designed Fe3O4@SiO2@MnO2 hybrids

doi:10.1016/j.ceramint.2020.03.074

CORC > 金属研究所 > 中国科学院金属研究所

	Optimizing the electromagnetic wave absorption performances of designed Fe3O4@SiO2@MnO2 hybrids
	Ge, Jianwen 1; Liu, Li 1; Cui, Yu 2; Li, Rui 1; Meng, Fandi 1; Wang, Fuhui 1
刊名	CERAMICS INTERNATIONAL
	2020-07-01
卷号	46 期号:10 页码:15325-15332
关键词	Ternary hybrids Fe3O4@SiO2@MnO2 Heterogeneous properties Microwave absorption performance
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2020.03.074
通讯作者	Liu, Li(liuli@mail.neu.edu.cn)
英文摘要	Whereas growing numbers of strong-absorption materials have been synthesized in recent years, it is also necessary to design broad-bandwidth, low-thickness, high-intensity absorbers. The ternary Fe3O4@SiO2@MnO2 hybrids were fabricated via hydrothermal and hydrolysis processes, combined with typical core-shell structure characteristics and heterogeneous properties, further generating interfacial polarization behavior and enhancing anisotropy. Investigations of micromorphology manifested the hierarchical characteristic via the presence of inner mesoporous Fe3O4 cores, outer SiO2 layers (approximately 10 nm) and MnO2 nanosheets as the surface of the hybrids. On the basis of rational design, the optimized multi-layers absorber exhibited excellent absorption performance with optimal reflection loss (RLmin) of - 50.2 dB at 13.9 GHz, and the effective absorption band (EAB) is up to 5.1 GHz from 11.5 GHz to 16.6 GHz with the thickness of 2.6 mm. Due to the large surfaces, high porosity as well as the synergistic effect derived from the magnetic Fe3O4 cores and dielectric SiO2@MnO2 layers, this effective strategy may be endowed with high potential to design high-efficient absorbers.
资助项目	National Natural Science Foundation of China[51871049] ; Fundamental Research Funds for the Central Universities[2017GFZ0004] ; Liao Ning Revitalization Talents Program[XLYC1807076]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000533511200114
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Liao Ning Revitalization Talents Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138974]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Li
作者单位	1.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ge, Jianwen,Liu, Li,Cui, Yu,et al. Optimizing the electromagnetic wave absorption performances of designed Fe3O4@SiO2@MnO2 hybrids[J]. CERAMICS INTERNATIONAL,2020,46(10):15325-15332.
APA	Ge, Jianwen,Liu, Li,Cui, Yu,Li, Rui,Meng, Fandi,&Wang, Fuhui.(2020).Optimizing the electromagnetic wave absorption performances of designed Fe3O4@SiO2@MnO2 hybrids.CERAMICS INTERNATIONAL,46(10),15325-15332.
MLA	Ge, Jianwen,et al."Optimizing the electromagnetic wave absorption performances of designed Fe3O4@SiO2@MnO2 hybrids".CERAMICS INTERNATIONAL 46.10(2020):15325-15332.