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Surface properties of fluorinated single-walled carbon nanotubes |
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| Authors: | Young Seak Lee Tae Hyun Cho Byoung Ky Lee Jae Seong Rho Kay Hyeok An Young Hee Lee |
| Institution: | a Department of Chemical Engineering, Nanotechnology Center, Sunchon National University, Sunchon 540-742, South Korea b Department of Chemical Engineering, Clemson University, Clemson, SC 29634, USA c Department of Fine Chemical Engineering, Chungnam National University, 305-764, Chungnam, South Korea d Department of Physics, Sungkyunkwan University, Suwon 440-746, South Korea |
| Abstract: | Single-walled carbon nanotubes (SWCNTs) were fluorinated at several different temperatures. The change of atomic and electronic structures of fluorinated SWCNTs was investigated using X-ray photoelectron spectroscopy (XPS), electrical resistivity measurements and transmission electron microscopy (TEM). The amount of doped fluorine increases with increasing doping temperature, and the fluorine atoms are covalently attached to the side-wall of the SWCNTs. From Raman spectra and HRTEM study, the strong fluorination on the SWCNTs leads to the breaking of carbon–carbon bonds and the disintegration of tube structure. Several intermediate phases of fluorinated SWCNTs are observed during e-beam irradiation in HRTEM. |
| Keywords: | Fluorination Single walled carbon nanotubes (SWCNTs) X-ray photoelectron spectroscopy (XPS) Surface property Transmission electron microscopy (TEM) |
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