The Effect of Catalyst Composition on the Growth of Multi-Walled Carbon Nanotubes from Methyl Esters of Oryza sativa Oil

Multi-walled carbon nanotubes on mono-metallic (Fe), bi-metallic (Fe-Co) and tri-metallic (Fe-Co-Mo) catalyst supported on silica were synthesized by spray pyrolysis of Oryza sativa oil at 650 °C for precursor flow rate of 20 mL per hour under N2 atmosphere. The characterization of the as-grown carbon nanostructure were analyzed by Scanning electron microscopy (SEM), High resolution transmission electron microscopy (HRTEM), XRD and Raman analysis. The high yield with good morphology grown over Fe-Co-Mo tri-metallic catalyst supported on silica at 650 °C may be due to synergistic advantages of high catalytic decomposition and promotional character of Molybdenum