Hydrogen adsorption studies on single wall carbon nanotubes

摘要

Hydrogen adsorption data on as-grown and heat treated single walled carbon nanotubes (SWNTs) obtained by a volumetric procedure in a Quantachrome Autosorb-1 equipment are presented. The isosteric heat of adsorption has been calculated for both samples from H2 equilibrium adsorption data at three temperatures. Studies in porous structure by N2 adsorption and density measurements in helium pycnometer are reported.