The adsorption behavior of dodecanethiol (C12H25SH) molecules was investigated on the surface of single-walled carbon nanotubes vibrational and X-ray photo-electron spectrometers. The active adsorption sites were proved to be Stone-Wales defects (5-7 ring defects). The Stone-Wales defect-removed single-walled carbon nanotubes formed by reacting nanotubes with allyl acrylate molecules were compared with pristine single-walled carbon nanotubes in dispersion and field emission. The former showed a higher dispersion and field emission than the latter.

Characteristic Features of Stone-Wales Defects in Single-Walled Carbon Nanotube; Adsorption, Dispersion, and Field Emission. S.Roh, J.Lee, M.Jang, M.Shin, J.Ahn, T.Park, W.Yi: Journal of Nanomaterials, 2010, 398621