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Title of article :
Synthesis of multiwall carbon nanotubes by chemical vapor deposition of ferrocene alone
Author/Authors :
Bhatia، نويسنده , , Ravi and Prasad، نويسنده , , V.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
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Abstract :
Multiwall carbon nanotubes (MWNTs) filled with Fe nanoparticles (NPs) have been synthesized by thermal chemical vapor deposition of ferrocene alone as the precursor. The MWNTs were grown at different temperatures: 980 and 800 ∘C. Characterization of as-prepared MWNTs was done by scanning and transmission electron microscopy, and X-ray diffraction. The transmission electron microscopy study revealed that Fe NPs encapsulated in MWNTs grown at 980 and 800 ∘C are spherical and rod shaped, respectively. Room-temperature vibrating sample magnetometer studies were done on the two samples up to a field of 1 T. The magnetization versus magnetic field loop reveals that the saturation magnetization for the two samples varies considerably, almost by a factor of 4.6. This indicates that Fe is present in different amounts in the MWNTs grown at the two different temperatures.
Keywords :
C. Electron microscopy , A. Carbon nanotube , B. Chemical vapor deposition , D. Magnetic property
Journal title :
Solid State Communications
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