Functionalization of carbon nanotubes via nitrogen glow discharge.
We have exposed single-wall carbon nanotubes (SWCNTs) to microwave-generated N2 plasma with the aim to functionalize the nanotubes. The results strongly depend on the distance between the discharge source and the sample, since nitrogen atoms generated can be lost due to recombination. No functionalization was observed when this distance was 7.0 cm. At intermediate distances (2.5 cm), the incorporation of nitrogen and oxygen onto the SWCNT was observed, while, at short distances (1 cm), products containing CN were also observed.
Khare
Bishun
B
Center for Nanotechnology, NASA Ames Research Center, Moffett Field, California 94035, USA. bkhare@mail.arc.nasa.gov
Wilhite
Patrick
P
Tran
Benjamin
B
Teixeira
Elico
E
Fresquez
Kenneth
K
Mvondo
Delphine Nna
DN
Bauschlicher
Charles
C
Meyyappan
M
M