Low temperature growth of carbon nanotubes from methane catalytic decomposition over nickel supported on a zeolite.
Multi-walled carbon nanotubes from 8 to 63 nm in diameter and from 60 to 413 nm in length, were synthesized over nickel supported on a zeolite by the chemical vapor deposition of methane in the relatively low temperature range 400-550 degrees C. The carbon deposited was analyzed by x-ray powder diffraction, Raman spectroscopy, and scanning and transmission electron microscopy. The effects of the reaction temperature on the carbon nanotube formation and relative purity were evaluated.
The West Pomeranian University of Technology in Szczecin, ulica Pulaskiego 10, Szczecin, Poland. jvp@ps.pl
Janusz
J
Ziebro
Iwona
I
Łukasiewicz
Ewa
E
Borowiak-Palen
Beata
B
Michalkiewicz