A study of micropores in single-walled carbon nanotubes by the adsorption of gases and vapors

Adsorption of N2, benzene and methanol have been studied on as-prepared single-walled carbon nanotubes (SWNT) as well as SWNTs treated with HCl and HNO3. These nanotubes are good microporous materials with total surface areas well above 400 m2/g and internal surface areas of 300 m2/g or higher. Benzene molecules are shown to be adsorbed within the pores of the SWNTs.