Osswald, Sebastian and Flahaut, Emmanuel and Ye, Haihui and Gogotsi, Yury Elimination of D-band in Raman spectra of double-wall carbon nanotubes by oxidation. (2005) Chemical Physics Letters, 4 (4-7). 422-427. ISSN 0009-2614
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(Document in English)
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Official URL: http://dx.doi.org/10.1016/j.cplett.2004.12.066
Abstract
In this Letter, we present an in situ Raman spectroscopy study of oxidation-induced changes in the structure and composition of double-wall carbon nanotubes (DWCNTs). Above 480 °C, the intensity of the D band decreases to less than 0.01% of the G band intensity, when measured using the 780 nm laser excitation. The D band was absent from the Raman spectra recorded with the 514.5 nm excitation. Thermogravimetric analysis and high-resolution transmission electron microscopy are used to explain the observed results. We conclude that oxidation provides a purification method for the DWCNT which leads to a sample containing tubes having nearly clean surfaces without disordered carbon.
| Item Type: | Article |
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| Additional Information: | The original publication is available on http://www.sciencedirect.com/science/journal/00092614 |
| Audience (journal): | International peer-reviewed journal |
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| Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Other partners > Drexel University (USA) |
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| Statistics: | download |
| Deposited On: | 19 Jun 2008 09:53 |
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