Dailly, A. and Yim, J. W. L. and Ahn, C. C. and Miura, E. and Yazami, R. and Fultz, B. (2005) Purification of carbon single-wall nanotubes by potassium intercalation and exfoliation. Applied Physics A: Materials Science and Processing, 80 (4). pp. 717-722. ISSN 0947-8396. doi:10.1007/s00339-004-3107-y. https://resolver.caltech.edu/CaltechAUTHORS:20190823-105106859
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Abstract
A purification procedure for single-wall carbon nanotubes prepared by the arc-discharge method is described that employs a new step of potassium intercalation. Thermogravimetric analysis, Raman spectroscopy, X-ray diffraction, and transmission electron microscopy were used to characterize the results of each purification step. This potassium intercalation step is particularly useful for exfoliating the graphitic shell structure that typically surrounds the metal catalyst particles that remain from the nanotube synthesis. By exfoliating the shell structure, subsequent treatments are more efficacious for removing the metal catalyst particles. By testing full purification procedures, it is demonstrated that with potassium intercalation the number of purification steps can be reduced.
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| Additional Information: | © Springer-Verlag 2004. Received: 5 October 2004/Accepted: 22 October 2004/Published online: 15 December 2004. This work was supported by the DOE through Energy Efficiency and Renewable Energy Grant No. DE-FC36-01GO11090, and by the Chemical and Environmental Sciences Laboratory of General Motors Research and Development Center. | |||||||||
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| Subject Keywords: | Purification; Transmission Electron Microscopy; Carbon Nanotubes; Thermogravimetric Analysis; Raman Spectroscopy | |||||||||
| Issue or Number: | 4 | |||||||||
| Classification Code: | PACS 81.05.Tp; 33.20.Fb; 81.07.De; 81.20.Ym; 71.20.Tx | |||||||||
| DOI: | 10.1007/s00339-004-3107-y | |||||||||
| Record Number: | CaltechAUTHORS:20190823-105106859 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190823-105106859 | |||||||||
| Official Citation: | Dailly, A., Yim, J., Ahn, C. et al. Appl. Phys. A (2005) 80: 717. https://doi.org/10.1007/s00339-004-3107-y | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 98162 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 23 Aug 2019 20:00 | |||||||||
| Last Modified: | 16 Nov 2021 17:36 |
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