Method for manufacturing carbon nanotubes

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

Reexamination Certificate

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C428S402000, C977S742000

Reexamination Certificate

active

07078007

ABSTRACT:
A carbon nanotube manufacturing method is provided. In the carbon nanotube manufacturing method, carbon nanoparticles are dispersed in a strong acid solution and heated at a predetermined temperature under reflux to form carbon nanotubes from the carbon nanoparticles. The carbon nanotubes can be simply produced on a mass-scale at low costs by using the strong acid solution.

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European Search Report issued by the European Patent Office on Dec. 17, 2004 in corresponding application.
Anne C. Dillon, et al., “A Simple and Complete Purification of Single-Walled Carbon Nanotube Materials,” Advanced Materials, vol. 11, No. 16, Nov. 10, 1999, pp. 1354-1358.
M. Monthioux et al., “Sensitivity of Single-Wall Carbon Nanotubes to Chemical Processing: An Electron Microscopy Investigation,” Carbon, vol. 39, No. 8, Jul. 2001, pp. 1251-1272.
A. C. Dillion, et al., “Evaluating the Purity of Single-Wall Nanotube Materials,” Mater. Res. Soc. Symposium Proceedings, vol. 633, 2001 Materials Research Society, pp. A5.2.1-A5.2.6.

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