| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Synthesis and Properties of Magnetic Composites of Carbon Nanotubes/Fe Nanoparticle |
XU Mei-Hua1,2, QI Xiao-Si1, ZHONG Wei1, YE Xiao-Juan1, DENG Yu1, AU
Chaktong3, JIN Chang-Qing1, YANG Zai-Xing1, DU You-Wei1 |
| 1National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 2100932Department of Applied Physics, Nanjing University of Technology, Nanjing 2100093Chemistry Department, Hong Kong Baptist University, Hong Kong |
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| Cite this article: |
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XU Mei-Hua, QI Xiao-Si, ZHONG Wei et al 2009 Chin. Phys. Lett. 26 116103 |
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Abstract Magnetic composites of carbon nanotubes (CNTs) are synthesized by the in situ catalytic decomposition of benzene at temperatures as low as 400°C over Fe nanoparticles (mean grain size = 26nm) produced by sol-gel fabrication and hydrogen reduction. The yield of CNT composite is up to about 3025% in a run of 6h. FE-SEM and HRTEM investigations reveal that one-dimensional carbon species are produced in a large quantity. A relatively high value of magnetization is observed for the composite due to the encapsulation of ferromagnetic Fe3C and/or α-Fe. The method is suitable for the mass-production of CNT composites that contain magnetic nanoparticles.
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| Keywords:
61.46.Fg
68.37.Ma
68.37.Og
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Received: 05 May 2009
Published: 30 October 2009
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| PACS: |
61.46.Fg
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(Nanotubes)
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68.37.Ma
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(Scanning transmission electron microscopy (STEM))
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68.37.Og
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(High-resolution transmission electron microscopy (HRTEM))
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