Abstract
We have proposed the new catalytic CVD generation technique of SWNTs from alcohol. By using alcohol as a carbon source, high-purity SWNTs were produced at relatively low temperature (550∿900℃). Here, using ferrocene as a precursor of floated iron catalyst clusters, high-purity SWNTs were generated from alcohol. Vapor of ferrocene ethanol solution was injected into a quartz tube, which was heated by an electronic furnace. Keeping the pressure of quartz tube at about 200-400 Torr, black soot was collected at a trap located at downstream of quartz tube. Raman scattering, TEM, SEM and TGA showed the generation of high-quality SWNTs, at low gas flow velocity (about 1 cm/s) and with Ar gas buffer. This simple technique is expected to be an efficient low-cost generation technique of bulk SWNTs.
