The Effect of Synthesis temperature on characteristics of carbon nanotubes produced by chemical vapour deposition over Co-Mo/MgO catalyst

Bimetallic Co-Mo nanoparticles supported on MgO substrate were prepared by wet impregnation method andwere used as catalysts for synthesis of carbon nanotubes (CNTs) from acetylene decomposition at temperature range of800°C-950°C by thermal chemical vapour deposition. The prepared catalytic basis and the grown CNTs werecharacterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Raman spectroscopy and theeffect of synthesis temperature on characteristics of produced CNTs was investigated. The results showed that the growthtemperature greatly affects the catalytic activity of the prepared catalyst, the average diameter and crystalline order ofthe grown CNTs and the density and uniformity of the growth.

کلیدواژه ها:

CNTs ، CVD ، magnesium oxide ، wet impregnation