Document Type : Research Paper
In this research, the effect of catalyst type on the CNTs synthesis was investigated. The carbon
nanotubes (CNTs) were produced on stainless steel substrates and two of catalyst with different
characteristics by using Thermal chemical vapor deposition (TCVD) method. The catalysts have the
important role for the growth carbon nanotubes (CNTs). Acetylene gas (C2H2) diluted by NH3 was
used as the reaction gas as a source of carbon. The formation of carbon nanotube structures were
confirmed by Raman spectroscopy and scanning electron microscopy (SEM) methods. It was found
that the type of catalyst play has an important role on the quality of the nanotubes.