Nano Archive

Effect of nanoscale curvature of single-walled carbon nanotubes on adsorption of polycyclic aromatic hydrocarbons

Gotovac, Suzana and Honda, Hiroaki and Hattori, Yoshiyuki and Takahashi, Kunimitsu and Kanoh, Hirofumi and Kaneko, Katsumi (2007) Effect of nanoscale curvature of single-walled carbon nanotubes on adsorption of polycyclic aromatic hydrocarbons. NANO LETTERS, 7 (3). pp. 583-587.

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Official URL: http://dx.doi.org/10.1021/nl0622597

Abstract

Liquid-phase adsorption of tetracene and phenanthrene on a single-walled carbon nanotube (SWCNT) was examined. Tetracene adsorption was more than six times greater than that of phenanthrene. X-ray photoelectron spectroscopic examination clearly showed that tetracene and phenanthrene molecules efficiently coated the SWCNT external surfaces. The remarkable difference between the adsorption amounts of tetracene and phenanthrene was caused by the nanoscale curvature effect of the tube surface, resulting in a difference in the amount of contact between the molecule and the tube surface. The adsorption of tetracene and phenanthrene caused a significant higher frequency shift in the radial breathing mode (RBM) of the Raman band of the SWCNT, indicating an intensive pi-pi interaction between these polycyclic aromatic hydrocarbons and the external SWCNT surface.

Item Type:Article
Subjects:Physical Science > Nano objects
Material Science > Nanochemistry
ID Code:3061
Deposited By:Anuj Seth
Deposited On:13 Jan 2009 15:03
Last Modified:20 Jan 2009 15:27

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