Effect of Acetylene Rates and Temperature Variations of Iron and Cobalt Nanoparticles in Carbon Nanotubes Fabrication

Abstract

In this research, low pressure chemical vapor deposition system(LPCVD) was used to produced carbon nanotubes. It has been used for sixteen samples of iron Fe and cobalt Co according to actylene C2H2 rates change of (10, 20, 30, and 40sccm) and with temperature rates varied of (450ºC, 650ºC, 850ºC, and 950ºC) respectively. The morphology was studied by using scanning electron microscope (SEM). It has been found carbon nanotubes CNTs was produced when acetylene rates was 20sccm at 950ºC for iron and 650ºC for cobalt. Also; it was found that the diameter of the tubes were 2~3 nm by using scanning electron microscope for both Fe and Co. The result obtained was compared with fractal analysis where the diameter ranges from 1.62 nm to 1.8 nm for both Fe and Co. This conformity between the ranges confirms the reality of the results.