Growth of single walled carbon nanotubes by hot filament assisted CVD using Ru catalysts

Abstract

The growth of single-walled carbon nanotubes (SWCNTs) using ruthenium as a catalyst has been reported. However, there are no reports on the use of hot-filament chemical vapor deposition (HFCVD) method. The growth of SWCNTs was attempted by HFCVD using ruthenium as a catalyst. Ethanol was used as the carbon source. At a growth temperature of 700℃, web-like products were recognized from the SEM images. The Raman spectra showed peaks in the G-band and RBMs, indicating the presence of SWCNTs in the products.