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). |
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