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On the merits of Raman spectroscopy and thermogravimetric analysis to asses carbon nanotube structural modifications
- Source :
- Applied Physics A. 106:843-852
- Publication Year :
- 2012
- Publisher :
- Springer Science and Business Media LLC, 2012.
-
Abstract
- Raman spectroscopy, thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy, and transmission electron microscopy are used to assess structural changes generated on the surface of multi-walled (MWCNTs) and single-walled (SWCNTs) carbon nanotubes. Different levels of structural modifications are generated by the use of acidic oxidative treatments. It is found that Raman spectroscopy is a very powerful technique to assess structural modification of SWCNTs with initial low defect concentration. For MWCNTs grown by chemical vapor deposition, which already contain a high density of structural defects in their as-produced state, Raman spectroscopy is not a very sensitive tool to detect the generation of further defects or other structural modifications introduced through acidic treatments. For this later case, TGA is a sensitive technique to assess structural modifications on the nanotubes.
- Subjects :
- Thermogravimetric analysis
Materials science
Analytical chemistry
General Chemistry
Carbon nanotube
Chemical vapor deposition
law.invention
symbols.namesake
Amorphous carbon
law
Transmission electron microscopy
symbols
General Materials Science
Fourier transform infrared spectroscopy
Raman spectroscopy
Subjects
Details
- ISSN :
- 14320630 and 09478396
- Volume :
- 106
- Database :
- OpenAIRE
- Journal :
- Applied Physics A
- Accession number :
- edsair.doi...........baf94371caf7ecf2cacb712f361705de