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
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
摘要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.
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.
(High-resolution transmission electron microscopy (HRTEM))
引用本文:
XU Mei-Hua;QI Xiao-Si;ZHONG Wei;YE Xiao-Juan;DENG Yu;AUChaktong;JIN Chang-Qing;YANG Zai-Xing;DU You-Wei. Synthesis and Properties of Magnetic Composites of Carbon Nanotubes/Fe Nanoparticle[J]. 中国物理快报, 2009, 26(11): 116103-116103.
XU Mei-Hua, QI Xiao-Si, ZHONG Wei, YE Xiao-Juan, DENG Yu, AUChaktong, JIN Chang-Qing, YANG Zai-Xing, DU You-Wei. Synthesis and Properties of Magnetic Composites of Carbon Nanotubes/Fe Nanoparticle. Chin. Phys. Lett., 2009, 26(11): 116103-116103.
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