Author/Authors :
Policicchio، نويسنده , , A. N. Caruso، نويسنده , , T. and Chiarello، نويسنده , , G. and Colavita، نويسنده , , E. and Formoso، نويسنده , , V. and Agostino، نويسنده , , R.G. and Tsoufis، نويسنده , , T. and Gournis، نويسنده , , D. and La Rosa، نويسنده , , S.، نويسنده ,
Abstract :
The electronic and chemical structure of carbon nanotubes synthesized by decomposition of acetylene over Fe–Co bimetallic catalysts in different growth conditions, were analyzed by valence band photoelectron spectroscopy and scanning electron microscopy. A clear relationship between the bonding features and the growth condition allowed us to determine the key parameters in terms of temperature, growth time and catalyst content. Furthermore, the analysis allowed a determination of the byproducts.
Keywords :
Scanning electron microscopy (SEM) , Photoelectron spectroscopy , Carbon nanotubes , Catalytical chemical vapor deposition (CCVD)