Laser ablative synthesis of carbon nanotubes

Patent · Tue Mar 02 00:00:00 EST 2010

OSTI ID:1014527

Smith, Michael W ^[1]; Jordan, Kevin ^[1]; Park, Cheol ^[2]

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1. Newport News, VA
2. Yorktown, VA

An improved method for the production of single walled carbon nanotubes that utilizes an RF-induction heated side-pumped synthesis chamber for the production of such. Such a method, while capable of producing large volumes of carbon nanotubes, concurrently permits the use of a simplified apparatus that allows for greatly reduced heat up and cool down times and flexible flowpaths that can be readily modified for production efficiency optimization. The method of the present invention utilizes a free electron laser operating at high average and peak fluence to illuminate a rotating and translating graphite/catalyst target to obtain high yields of SWNTs without the use of a vacuum chamber.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-84ER40150
• Assignee: Jefferson Science Associates, LLC (Newport News, VA)
• Patent Number(s): 7,671,306
• Application Number: U S Patent Application 11/589,011
• OSTI ID: 1014527
• Country of Publication: United States
• Language: English