Hot wire production of single-wall and multi-wall carbon nanotubes

Patent · Tue Oct 26 00:00:00 EDT 2010

OSTI ID:1016016

Dillon, Anne C. ^[1]; Mahan, Archie H. ^[2]; Alleman, Jeffrey L. ^[3]

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1. Boulder, CO
2. Golden, CO
3. Lakewood, CO

Apparatus (210) for producing a multi-wall carbon nanotube (213) may comprise a process chamber (216), a furnace (217) operatively associated with the process chamber (216), and at least one filament (218) positioned within the process chamber (216). At least one power supply (220) operatively associated with the at least one filament (218) heats the at least one filament (218) to a process temperature. A gaseous carbon precursor material (214) operatively associated with the process chamber (216) provides carbon for forming the multi-wall carbon nanotube (213). A metal catalyst material (224) operatively associated with the process (216) catalyzes the formation of the multi-wall carbon nanotube (213).

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC36-99GO10337
• Assignee: Alliance for Sustainable Energy, LLC (Golden, CO)
• Patent Number(s): 7,820,132
• Application Number: 10/548,924
• OSTI ID: 1016016
• Resource Relation: Patent File Date: 2003 Mar 13
• Country of Publication: United States
• Language: English