Graphitization degree of carbon nanotube arrays

Aligned carbon nanotube arrays (ACNTs) were prepared by chemical vapor deposition (CVD). The graphitization degree of ACNTs was systematically investigated. The morphology and structure of the products were characterized by scanning electron microscopy (SEM) and Raman spectroscopy. The mechanism how the different experiment conditions affect the graphitization degree of ACNTs was discussed. The results indicated that the graphitization degree of ACNTs would be bad when the concentration of catalyst was too low within a certain range of catalyst concentration. And only if the flowing rate of reactant is appropriate, the graphitization degree of ACNTs will be nice. Moreover, in order to obtain a good graphitization degree of ACNTs, the growth temperature is need to control accurately.