Chiang Mai Journal of Science

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We report the fabrications of  carbon nanotubes (CNTs) by hot filament CVD under a ow precursor, using alcohol as a carbon source. The comparative studies of the properties of the nanotubes have been carried out by varying alcohol type, growth temperature and catalyst material. The obtained CNTs are characterized by scanning electron microscopy (SEM) and Raman spectroscopy. The results show that the Fe-Co catalyst with zeolite can synthesis CNTs at a low temperature and provide small tube, compared the catalyst without zeolite. CNTs with small diameter can be obtained from methanol using a catalyst without zeolite. According to  the  Raman  spectroscopy,  the  purity  of   the  CNTs  is  comparable  to  the  other  previous reports.

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