Author/Authors :
Cinke، نويسنده , , Martin X.D. Li، نويسنده , , Jing and Bauschlicher Jr.، نويسنده , , Charles W. and Ricca، نويسنده , , Alessandra and Meyyappan، نويسنده , , M.، نويسنده ,
Abstract :
Adsorption of CO2 on purified single-walled carbon nanotubes (SWNTs) has been studied in the temperature range of 0–200 °C and found to be mainly a physisorption process. The SWNTs adsorb nearly twice the volume of CO2 compared to activated carbon. The experimental results yield a CO2 heat of adsorption of 2303 J/mol (0.024 eV) in SWNTs. Our computational study yields a similar binding energy and shows that the CO2 is physisorbed side-on to the nanotube.
