A glow-discharge approach for functionalization of carbon nanotubes
Abstract
We demonstrate the functionalization of single-walled carbon nanotubes (SWNTs) using a glow discharge for generating atomic or molecular radicals. A 30-s exposure to a cold plasma of H2 results in near-saturation coverage of SWNT with atomic hydrogen. Functionalization of SWNTs with atomic hydrogen is confirmed by an infrared band at 2924 cm-1, characteristic of C-H stretching mode. A corresponding decrease in the ultraviolet absorption is also observed, which is due to a loss of some conjugated C-C π bonds in hydrogen covered SWNTs.
- Publication:
-
Applied Physics Letters
- Pub Date:
- December 2002
- DOI:
- 10.1063/1.1533859
- Bibcode:
- 2002ApPhL..81.5237K
- Keywords:
-
- 68.43.Pq;
- 78.30.Na;
- 78.40.Ri;
- Adsorbate vibrations;
- Fullerenes and related materials;
- Fullerenes and related materials