Fabrication and characterisation of multiwalled carbon nanotubes decorated by magnetic Ni nanoparticles
Fabrication and characterisation of multiwalled carbon nanotubes decorated by magnetic Ni nanoparticles
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DOI：
10.1179/174328409x425281
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发表时间：
2011-01
影响因子：
1.8
通讯作者：
G. Wan;G. Wang
中科院分区：
文献类型：
--
作者：
G. Wan;G. Wang
采用微波辅助方法，对碳纳米管（CNT）进行敏化和活化处理，成功地制备了磁性CNT复合材料。用透射电子显微镜和X射线粉末衍射对复合材料的相结构和形貌进行了详细的表征。结果表明，敏化和活化对于在碳纳米管表面获得致密的磁性纳米颗粒层是绝对必要的。使用振动样品磁强计的磁性测量表明，所制备的复合材料是铁磁性的。
Magnetic carbon nanotube (CNT) composites have been successfully fabricated by employing a microwave assisted method after sensitisation and activation. The phase structures and morphologies of the composites were characterised in detail by transmission electron microscope and X-ray powder diffraction. The results show that sensitisation and activation are absolutely necessary for a dense layer of magnetic nanoparticles obtained on the surface of CNTs. Magnetic measurements using a vibrating sample magnetometer demonstrate that the prepared composites are ferromagnetic.