INOR 752 |
| Oxygen functionalized Single-Wall Carbon Nanotubes (SWNTs) can serve as anchor precursor for further functionalizes the tubes, especially when the reaction needs to be carry out in polar solvent media. The exposure of the SWNTs solution to a source of ultraviolet light under oxygen atmosphere result in oxygen groups attached to the tubes. Similar behavior has been observed after exposing SWNTs to oxidative reagent. The most common reagent used to generate acidic functional groups on the SWNTs has been nitric acid, sulfuric acid, peroxide, or potassium permanganate. However, photo-oxidation allows oxidizing SWNTs without the use of strong oxidative reagent that can cause extensive damage to the tubes. Analytical characterization shows functional groups such as epoxy, carboxylate, hydroxyl, and/or ester as the most common groups on the SWNTs after the photo-oxidation. |
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Nanoscience: Characterization
7:00 PM-10:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster
Division of Inorganic Chemistry |