Iron cobalt/polypyrrole nanoplates with tunable broadband   electromagnetic wave absorption

doi:10.1039/c6ra16003d

CORC > 北京大学 > 工学院

	Iron cobalt/polypyrrole nanoplates with tunable broadband electromagnetic wave absorption
	Wang, Haicheng ; Yan, Zhiran ; An, Jing ; He, Jun ; Hou, Yanglong ; Yu, Hongying ; Ma, Ning ; Yu, Guanghua ; Sun, Dongbai
刊名	RSC ADVANCES
	2016
关键词	MICROWAVE ABSORBING PROPERTIES CONTROLLABLE SYNTHESIS COMPOSITES NANOPARTICLES GRAPHENE MICROSPHERES NANOCOMPOSITES DESIGN
DOI	10.1039/c6ra16003d
英文摘要	Magnetic nanoparticles (NPs)/conducting polymer nanoplates are great potential candidates for advanced electromagnetic wave absorbents due to their unique physical properties such as strong absorption, low density and good anti-oxidation. In this work, iron cobalt nanoparticles (FeCo NPs) were prepared by a modified chemical reduction method and FeCo/polypyrrole (PPy) nanoplates were synthesized by in situ chemical oxidative polymerization. The nanoplates exhibited an excellent electromagnetic wave absorbing performance. The maximum reflection loss (RL) reaches -52.30 dB at 13.40 GHz with an absorber thickness of 2.15 mm and the effective absorbing width (RL < -10 dB) is located at approximately 11.31-16.37 GHz. The dipole polarization, interface polarization and space-charge polarization of the nanocomposites contribute to the dielectric loss of the electromagnetic wave. Moreover, the natural resonance, exchange resonance and eddy current loss of the nanocomposites contribute to the magnetic loss of the electromagnetic wave. The synergetic effect of both the dielectric and magnetic losses of the nanocomposites endows the FeCo/PPy nanoplates with excellent broadband electromagnetic wave absorption.; National Natural Science Foundation of China [51101013]; Fundamental Research Funds for the Central Universities [FRF-TP-14-012A2, FRF-TP-15-007A3]; SCI(E); EI; ARTICLE; hcwang@mater.ustb.edu.cn; dbsun@mater.ustb.edu.cn; 95; 92152-92158; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/494872]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Haicheng,Yan, Zhiran,An, Jing,et al. Iron cobalt/polypyrrole nanoplates with tunable broadband electromagnetic wave absorption[J]. RSC ADVANCES,2016.
APA	Wang, Haicheng.,Yan, Zhiran.,An, Jing.,He, Jun.,Hou, Yanglong.,...&Sun, Dongbai.(2016).Iron cobalt/polypyrrole nanoplates with tunable broadband electromagnetic wave absorption.RSC ADVANCES.
MLA	Wang, Haicheng,et al."Iron cobalt/polypyrrole nanoplates with tunable broadband electromagnetic wave absorption".RSC ADVANCES (2016).