| Abstract
| - We clarified the adsorption sites inside the single-wall carbon nanohorns (SWNHs), a type of single-wallcarbon nanotubes having thick diameters of 2−5 nm, through the thermogravimetric analysis of the desorptionof xylene and benzene from SWNHs. The influence of the sizes of holes piercing through the SWNH wallswas also examined. Three types of adsorption sites were found inside the SWNH tubes, which were assignedto the tube tips, the sidewalls, and central regions of the hollow spaces. The experimental results also suggestedthat the adsorbed xylene and benzene were stabilized mainly by weak self-interactions at the central regionsand their quick desorption was caused by the weak self-interactions.
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