Document Type
Patent
Publication Date
5-20-2008
Patent Number
patent number 7374685
Abstract
A method for separating semiconducting single-walled carbon nanotubes from metallic single-walled carbon nanotubes is disclosed. The method utilizes separation agents that preferentially associate with semiconducting nanotubes due to the electrical nature of the nanotubes. The separation agents are those that have a planar orientation, .pi.-electrons available for association with the surface of the nanotubes, and also include a soluble portion of the molecule. Following preferential association of the separation agent with the semiconducting nanotubes, the agent/nanotubes complex is soluble and can be solubilized with the solution enriched in semiconducting nanotubes while the residual solid is enriched in metallic nanotubes.
Application Number
11/013900
Assignees
Clemson University (Anderson, SC, US)
Filing Date
2004-12-16
Primary/U.S. Class
210/639
Other/U.S. Class
209/1, 423/461, 436/178, 977/751, 977/845