Synthesis of multi-walled carbon nanotubes by thermal CVD technique on NiO catalyst

Abstract

In our work, carbon nanotubes (CNTs) were grown by using NiO as a catalyst, using chemical vapor deposition (CVD). and using propanol (C3H8O) as a carbon source, under specific conditions such as reaction temperature, time, and gas ratio that are 740 C, 30 min, and 125 Sccm, respectively. Specifications of CNTs were analyzed and characterized using X-ray diffraction (XRD), the field emission scanning electron microscope (FESEM) with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopic (TEM). showed the results of x-ray diffraction analyzes showed that the sample is the polycrystalline and hexagonal type with a predominant direction (002). Pictures of FE-SEM showed the formation of carbon tubes in various and various forms with NiO aggregates, and the rate obtained at the average sizes of MWCNT was 18.85 nm, As for images of TEM, they demonstrated the formation of multi-walled carbon nanotubes with high clarity. EDS analysis also showed Primarily carbon and then nickel and have discernible peaks in the figure, with a few molybdenum and cobalt impurities showing up. As for images TEM, they demonstrated the formation of multi-walled carbon nanotubes with high clarity.