Electromagnetic Properties of Polypyrrol-Co0.7Cu0.1Zn0.2Fe2O4 Nanocomposites Prepared by in situ Polymerization
文献类型：期刊论文
| 作者 | Ma Ruiting; Wang Xiao; Jiang Dan; Zhao Haitao |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2014 |
| 期号 | 10页码:1364-1368 |
| 关键词 | NI-ZN FERRITE MAGNETIC-PROPERTIES Composites Ferrite Dielectric properties Magnetic properties |
| ISSN号 | 1000-3304 |
| 其他题名 | Electromagnetic Properties of Polypyrrol-Co_(0.7)Cu_(0.1)Zn_(0.2)Fe_2O_4 Nanocomposites Prepared by in situ Polymerization |
| 英文摘要 | The nanocrystalline Co0.7Cu0.1Zn0.2Fe2O4 ferrites and the polypyrrol (PPy) -Co0.7Cu0.1Zn0.2Fe2O4 nanocomposites were prepared by self-propagating combustion method and an in situ polymerization method, respectively. The structure and morphology of the synthesized materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectrometry (FTIR), and the dielectric, microwave absorbing and magnetic capability of the two materials were studied by wave-guide method and vibrating sample magnetometer (VSM), respectively. The results show that the pure spinet Co0.7Cu0.1Zn0.2Fe2O4 ferrites are obtained and a small amount Co2+ ions of the octahedron ferrites are replaced by Cu2+ ions, which results in the reduce of lattice constant of the Co0.7Cu0.1Zn0.2Fe2O4 ferrites. The two powders both have good dispersity and the average size of the two kinds of particles is about 15 nm and 50 nm, respectively. In the measuring frequency range of 5.0 similar to 20.0 GHz, the reflection loss of PPy-Co0.7Cu0.1Zn0.2Fe2O4 composites is between -16.25 and -20.27 dB, and the reflection loss maximum value is about -20.27 dB at 18.0 GHz with a bandwidth of 2.0 GHz (full frequency width at about a half of the peak response), which is obviously higher than that of the Co0.7Cu0.1Zn0.2Fe2O4 ferrites. The saturation magnetization (M-s) and remanent magnetization (M-r) of the PPy-Co0.7Cu0.1Zn0.2Fe2O4 composites are 1.29 emu/g and 0.429 emu/g, respectively, which are smaller than those of the Co0.7Cu0.1Zn0.2Fe2O4 ferrite. But the coercive force (H-o) of the PPy-Co0.7Cu0.1Zn0.2Fe2O4 composites, which is 38.96 KA/m, is greater than that of the Co0.7Cu0.1Zn0.2Fe2O4 ferrite. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5256952 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/157610]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Ma Ruiting,Wang Xiao,Jiang Dan,et al. Electromagnetic Properties of Polypyrrol-Co0.7Cu0.1Zn0.2Fe2O4 Nanocomposites Prepared by in situ Polymerization[J]. ACTA POLYMERICA SINICA,2014(10):1364-1368. |
| APA | Ma Ruiting,Wang Xiao,Jiang Dan,&Zhao Haitao.(2014).Electromagnetic Properties of Polypyrrol-Co0.7Cu0.1Zn0.2Fe2O4 Nanocomposites Prepared by in situ Polymerization.ACTA POLYMERICA SINICA(10),1364-1368. |
| MLA | Ma Ruiting,et al."Electromagnetic Properties of Polypyrrol-Co0.7Cu0.1Zn0.2Fe2O4 Nanocomposites Prepared by in situ Polymerization".ACTA POLYMERICA SINICA .10(2014):1364-1368. |
入库方式： OAI收割
来源：金属研究所
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