Electrical and magnetic properties of polyaniline/Fe3O4 nanostructures
文献类型：期刊论文
| 作者 | Long, YZ ; Chen, ZJ ; Duvail, JL ; Zhang, ZM ; Wan, MX |
| 刊名 | PHYSICA B-CONDENSED MATTER
 |
| 出版日期 | 2005 |
| 卷号 | 370期号:1-4页码:121 |
| 关键词 | LIGHT-EMITTING-DIODES CONDUCTING POLYMERS NANOTUBULAR POLYANILINE SEMICONDUCTING POLYMER IRON-OXIDE NANOCOMPOSITES COMPOSITES PARTICLES NANOPARTICLES NANOCRYSTALS |
| ISSN号 | 0921-4526 |
| 通讯作者 | Long, YZ: Inst Mat Jean Rouxel, 2 Rue Houssiniere, F-44322 Nantes, France. |
| 中文摘要 | We report on electrical and magnetic properties of polyaniline (PANI) nanotubes (similar to 150 nm in diameter) and PANI/Fe3O4 nanowires (similar to 140 nm in diameter) containing Fe3O4 nanoparticles with a typical size of 12 am. These systems were prepared by a template-free method. The conductivity of the nanostructures is 10(-1)-10(-2) S/cm; and the temperature dependent resistivity follows a ln p similar to T-1/2 law. The composites (6 and 20 wt% of Fe3O4) show a large negative magnetoresistance compared with that of pure PANI nanotubes and a considerably lower saturated magnetization (M-s = 3.45 emu/g at 300 K and 4.21 emu/g at 4 K) compared with the values measured from bulk magnetite (Ms = 84 emu/g) and pure Fe3O4 nanoparticles (MS = 65 emu/g). AC magnetic susceptibility was also measured. It is found that the peak position of the AC susceptibility of the nanocomposites shifts to a higher temperature (> 245K) compared with that of pure Fe3O4 nanoparticles (190-200K). These results suggest that interactions between the polymer matrix and nanoparticles take place in these nanocomposites. (c) 2005 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36914]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Long, YZ,Chen, ZJ,Duvail, JL,et al. Electrical and magnetic properties of polyaniline/Fe3O4 nanostructures[J]. PHYSICA B-CONDENSED MATTER,2005,370(1-4):121. |
| APA | Long, YZ,Chen, ZJ,Duvail, JL,Zhang, ZM,&Wan, MX.(2005).Electrical and magnetic properties of polyaniline/Fe3O4 nanostructures.PHYSICA B-CONDENSED MATTER,370(1-4),121. |
| MLA | Long, YZ,et al."Electrical and magnetic properties of polyaniline/Fe3O4 nanostructures".PHYSICA B-CONDENSED MATTER 370.1-4(2005):121. |
入库方式： OAI收割
来源：物理研究所
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