An array of iron nanowires encapsulated in polyaniline nanotubules and its magnetic behavior

被引:35
作者
Cao, HQ
Xu, Z [1 ]
Sheng, D
Hong, JM
Sang, H
Du, YW
机构
[1] Nanjing Univ, Inst Coordinat Chem, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Ctr Nanometer Sci & Technol, Nanjing 210093, Peoples R China
[4] Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Peoples R China
关键词
D O I
10.1039/b006474m
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An array of iron nanowires within polyaniline nanotubules was obtained using a two-step template synthesis. First, an array of polyaniline nanotubules was synthesized in an alumina template, and then it was used as a "second-order template" for electrodeposition of iron within the polyaniline nanotubules. The polyaniline envelope may protect the iron nanowires against the corrosive atmosphere. The composite nanostructure was characterized by EDX, XRD and SEM and its magnetic properties were measured by VSM. Coercive forces of the array of iron nanowires encapsulated within polyaniline range from about 119 to 210 Oe with an increase from 0 to 90 degrees for theta, the angle between the applied field and the surface of the alumina template. The array has the axis of easy magnetization in the membrane plane and may be a promising candidate for horizontal magnetic recording materials.
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页码:958 / 960
页数:3
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