1.
Low-temperature growth of carbon nanotubes from the catalytic decomposition of carbon tetrachloride.
J Am Chem Soc
; 126(32): 9936-7, 2004 Aug 18.
Artigo
em Inglês
| MEDLINE
| ID: mdl-15303864
RESUMO
Multiwall carbon nanotubes (MWNTs) were synthesized via the decomposition of CCl4 in supercritical CO2 at 175 degrees C and 27.6 MPa using an iron-encapsulated dendrimer as a growth catalyst. The average diameter of resultant nanotubes was 20-25 nm, obtained after a 24-h reaction time. Our conditions represent the first application for CX4 precursors, as well as the lowest-reported temperature regime for carbon nanotube growth, allowing the use of other temperature-sensitive catalytic substrates.