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

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	Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties
	Chen JT(陈江涛)
刊名	Nanotechnology
	2009
卷号	20 页码:105706(1-10)
ISSN号	0957-4484
通讯作者	阎鹏勋
中文摘要	Hydrohausmannite nanoparticles (∼10 nm) were prepared by the hydrothermal method at 100 ◦ C for 72 h. Subsequent annealing was done in air at 400 ◦ C and 800 ◦ C for 10 h, Mn3O4 nanoparticles (∼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 ◦C. The attenuation of microwave can be attributed to dielectric loss and their absorption mechanism was discussed in detail.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (grant no 60376039)
语种	英语
WOS记录号	WOS:000263493800027
公开日期	2012-11-13
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2108]
专题	兰州化学物理研究所_固体润滑国家重点实验室
推荐引用方式 GB/T 7714	Chen JT. Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties[J]. Nanotechnology,2009,20:105706(1-10).
APA	陈江涛.(2009).Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties.Nanotechnology,20,105706(1-10).
MLA	陈江涛."Nanoparticles and 3D sponge-like porous networks of manganese oxides and their microwave absorption properties".Nanotechnology 20(2009):105706(1-10).