期刊
CHEMICAL PHYSICS LETTERS
卷 338, 期 2-3, 页码 101-107出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0009-2614(01)00278-0
关键词
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Aligned multi-walled carbon nanotubes (30-130 mum long, 10-200 nm outer diameter) have been prepared in high yield by pyrolysing homogeneously dispersed aerosols generated from benzene/ferrocene solutions, at 800 degreesC or 950 degreesC, using a compressed gas (Ar) driven atomiser. Scanning electron microscopy (SEM) and TEM studies reveal the presence of carpet-like flakes containing high yields of partly filled carbon nanotubes. X-ray diffraction confirms the presence of graphite-like structures, alpha -Fe and Fe(3)C (cementite). Nanotube and filling yields were found to be temperature and ferrocene concentration dependent. The preparative method opens up new avenues for nanotube synthesis based upon hydrocarbon/catalyst solutions. (C) 2001 Elsevier Science B.V. All rights reserved.
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