Polymer-free carbon nanotube assemblies (fibers, ropes, ribbons, films)

US7938996B2 · kind B2 · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• Ray H. Baughman · Morristown, US
• Mikhail Kozlov · Eatontown, US
• Von Howard Ebron · Republic, US
• Ryan Capps · Dallas, US
• John P. Ferraris · Dallas, US

Key dates

• Filing date: Sep 30, 2005
• Grant date: May 10, 2011
• Expiry date: Mar 3, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/842
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process, apparatus, compositions and application modes are provided that relate to nanofiber spinning without the use of superacids in the spinning solution. The methods employ either acids or bases for a flocculation solution. The advances disclosed therein enable the use of nanofibers, including carbon nanotubes, for a variety of applications including, but not limited to, electromechanical actuators, supercapacitors, electronic textiles, and in devices for electrical energy harvesting.