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New Strategies for the Enrichment of Metallic Single-Walled Carbon Nanotubes

Voggu, Rakesh and Ghosh, Sandeep and Govindaraj, A and Rao, CNR (2010) New Strategies for the Enrichment of Metallic Single-Walled Carbon Nanotubes. In: Journal of Nanoscience and Nanotechnology, 10 (6, Sp. Iss. SI). pp. 4102-4108.

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Official URL: http://www.aspbs.com/jnn/contents_jnn2010.htm#v10n...


Enrichment of metallic single-walled carbon nanotubes (SWNTs) has been accomplished by several means, including new extraction and synthetic procedures and by interaction with metal nanoparticles as well as electron donor molecules. In the presence of Fe(CO)(5) the arc discharge method yields nearly pure metallic nanotubes. Fluorous chemistry involving the preferential diazotization of metallic SWNTs offers a good procedure of obtaining the pure metallic species. Interaction of gold or platinum nanoparticles as well as of electron-donor molecules such as aniline and tetrathiafulvalene (TTF) transform semiconducting SWNTs into metallic ones. Raman and electroni spectroscopies provide ideal means to monitor enrichment of metallic SWNTs.

Item Type: Journal Article
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Additional Information: Copyright of this article belongs to American Scientific Publishers.
Keywords: Single-Walled Carbon Nanotubes;Metallic;Separation; Synthesis;Transition
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 10 Jun 2010 06:02
Last Modified: 10 Jun 2010 06:02
URI: http://eprints.iisc.ernet.in/id/eprint/27029

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