A glow-discharge approach for functionalization of carbon nanotubes

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.

[1]  A. Rinzler,et al.  Fluorination of single-wall carbon nanotubes , 1998 .

[2]  M. Terrones,et al.  NanoTeflons: Structure and EELS Characterization of Fluorinated Carbon Nanotubes and Nanofibers , 2002 .

[3]  Eklund,et al.  Solution properties of single-walled carbon nanotubes , 1998, Science.

[4]  Emmanuel Flahaut,et al.  Carbon nanotubes in novel ceramic matrix nanocomposites , 2000 .

[5]  M. Meyyappan,et al.  Functionalization of Carbon Nanotubes Using Atomic Hydrogen from a Glow Discharge , 2002 .

[6]  R. Smalley,et al.  Functionalization of carbon nanotubes by electrochemical reduction of aryl diazonium salts: a bucky paper electrode. , 2001, Journal of the American Chemical Society.

[7]  C. Bauschlicher,et al.  High Coverages of Hydrogen on a (10,0) Carbon Nanotube , 2001 .

[8]  M. Dresselhaus.  Carbon nanotubes , 1995 .

[9]  Ya‐Ping Sun,et al.  Sonication-Assisted Functionalization and Solubilization of Carbon Nanotubes , 2002 .

[10]  Francisco Pompeo,et al.  Water Solubilization of Single-Walled Carbon Nanotubes by Functionalization with Glucosamine , 2002 .

[11]  J. Greenberg,et al.  UV photodestruction of CH bonds and the evolution of the 3.4 mu m feature carrier. I. The case of aliphatic and aromatic molecular species , 2001 .

[12]  Christopher R. So,et al.  High Coverages of Hydrogen on (10,0), (9,0) and (5,5) Carbon Nanotubes , 2002 .

[13]  Kenneth A. Smith,et al.  Gas-phase catalytic growth of single-walled carbon nanotubes from carbon monoxide , 1999 .

[14]  Stanislaus S. Wong,et al.  Functionalization of Carbon Nanotubes with a Metal-Containing Molecular Complex , 2002 .

[15]  Kenneth A. Smith,et al.  Reversible sidewall functionalization of buckytubes , 1999 .