Characterization of functionalized single-walled carbon nanotubes at individual nanotube level. (South Carolina Academy of Sciences Abstracts).
Individual and thin bundles of aminopolymer-functionalized
single-walled carbon nanotubes (SWNTs) were successfully imaged using
high-resolution transmission electron microscopy (HR-TEM). The amorphous
materials covering the nanotube surface of SWNTs were confirmed to be
preimiarly nitrogen-containing polymer functionalities by corresponding
electron energy loss spectroscopy (EELS) characterization before and
after ex situ thermal defunctionalization of the sample of the same TEM specimen. In addition, the strategy of ex situ thermal
defunctionalization was also applied to other functionalized SWNT samples to achieve efficient HR-TEM imaging.
Yi Lin, Ya-Ping Sun
Department of Chemistry