synthesis of carbon nano structures on fe/cu/ai and al/steel by thermal chemical vapour deposition method

using c2h2, 112 and as gases at 550'c, carbon nanotubes were fabricated on the surfaces of twosubstrates coated by nano thin layers of metal catalysts by dc magnetron sputtering. aystamless steel andfe/cteal, by thermal chemical vapor deposition (tcvd) the surface properties of the substrates wereparticularly investigated, and the effect of treatment of the substrates on the cnt's growth is criticallyanalyzed. it was found that carbon nanotubes (cnts) formation significantly depends on substrates andcatalysts. gnps with nano helical( spiral, nano rope struchtres and small amount of amorphous carbon aresuccessfully grown on fe/cu/al. cnts with nano wall structure gown on al/steel. the details ofmorphology of carbon nanotubes are discussed through scanning electron microscope (sem) and romanspectroscopy. the surface roughness of the deposited of fe/cu bilayer and al as catalysts are discussedthrough atomic force microscope (afm).