MWCNTs synthesis from butanol, diethyl ether, ethyl acetate and hexane by chemical vapor deposition with a stainless steel core as catalyst

Resumen

A stainless steel core catalyst with several green precursors, butanol, diethyl ether, ethyl acetate and hexane, were used to obtain multi-walled carbon nanotubes via chemical vapor deposition. Argon was used as carrier gas at 50-90 ml/min rates. Samples were synthetized at 680-850 ºC, according to the precursor used. The characterization techniques were scanning electronic microscopy, X-ray diffraction, energy dispersive, Fourier transformed infrared and Raman spectroscopy. Themicrographs  showed  tangled carbon  nanotubes formation  with  different diameters from  50-300  nm.  Elemental analysis indicated  carbon atomic percentages ranging from 93-99 %, 1.0-4.5 % iron and  less than 1% of  manganese,  chrome and silicon. X-Ray diffraction demonstrated the characteristic carbon nanotubes peak (002)at 26°. G and D carbon nanotubes distinctive bands were confirmed by Raman spectra for all samples.