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Zheng Z, Xu B, Huang L, He L, Ni XM (2008) Solid State Sciences 10(3), 316-320.
文章来源:WOS    作者:SKLFS    发布时间:2011-08-16

Zheng Z, Xu B, Huang L, He L, Ni XM (2008) Novel composite of Co/carbon nanotubes: Synthesis, magnetism and microwave absorption properties. Solid State Sciences 10(3), 316-320. [In English]

Web link: http://dx.doi.org/10.1016/j.solidstatesciences.2007.09.016

Keywords:

composite; cobalt; carbon nanotubes; coercivity; microwave absorption; carbon nanotubes; nickel nanoparticles; microspheres; cobalt

Abstract: Composites of flowery hexagonal close-packed (hcp) cobalt crystallite covered with multi-wall carbon nanotubes (MWCNTs) were fabricated in high yield via a simple catalytic pyrolysis method. A series of characterizations including X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) revealed that MWCNTs grew on the surface of the cobalt flowers, which possibly followed a bottom-growth model. Thus-prepared Co/CNT composites not only exhibited much higher coercivity (772 Oe) than that of the initial pure cobalt flowers (308 Oe), but also showed much-enhanced microwave absorption than that of pure Co flowers or CNTs. The enhancement mechanism was investigated on the basis of the magnetic properties of Co/CNT composite and electromagnetic theory. (c) 2007 Elsevier Masson SAS. All rights reserved.

 
 
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Zheng Z, Xu B, Huang L, He L, Ni XM (2008) Solid State Sciences 10(3), 316-320.
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