Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties

doi:10.1088/0957-4484/20/10/105706

CORC > 化学研究所 > 中国科学院化学研究所

	Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties
	Yan, D.1; Cheng, S.1; Zhuo, R. F.1; Chen, J. T.1; Feng, J. J.1; Feng, H. T.1; Li, H. J.1; Wu, Z. G.1; Wang, J.1; Yan, P. X.1,2
刊名	NANOTECHNOLOGY
	2009-03-11
卷号	20 期号:10
ISSN号	0957-4484
DOI	10.1088/0957-4484/20/10/105706
英文摘要	Hydrohausmannite nanoparticles (similar to 10 nm) were prepared by the hydrothermal method at 100 degrees C for 72 h. Subsequent annealing was done in air at 400 degrees C and 800 degrees C for 10 h, Mn3O4 nanoparticles (similar to 25 nm) and 3D Mn2O3 porous networks were obtained, respectively. The products were characterized by XRD, TEM, SAED and FESEM. Time-dependent experiments were carried out to exhibit the formation process of the Mn2O3 networks. Their microwave absorption properties were investigated by mixing the product and paraffin wax with 50 vol%. The Mn3O4 nanoparticles possess excellent microwave absorbing properties with the minimum reflection loss of -27.1 dB at 3.1 GHz. In contrast, the Mn2O3 networks show the weakest absorption of all samples. The absorption becomes weaker with the annealing time increasing at 800 degrees C. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism was discussed in detail.
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000263493800027
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/66787]
专题	中国科学院化学研究所
通讯作者	Yan, P. X.
作者单位	1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Chem & Phys, Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yan, D.,Cheng, S.,Zhuo, R. F.,et al. Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties[J]. NANOTECHNOLOGY,2009,20(10).
APA	Yan, D..,Cheng, S..,Zhuo, R. F..,Chen, J. T..,Feng, J. J..,...&Yan, P. X..(2009).Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties.NANOTECHNOLOGY,20(10).
MLA	Yan, D.,et al."Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties".NANOTECHNOLOGY 20.10(2009).