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Graphene-carbon nanotube hybrid materials and use as electrodes

United States Patent

September 27, 2016
View the Complete Patent at the US Patent & Trademark Office
Provided are methods of making graphene-carbon nanotube hybrid materials. Such methods generally include: (1) associating a graphene film with a substrate; (2) applying a catalyst and a carbon source to the graphene film; and (3) growing carbon nanotubes on the graphene film. The grown carbon nanotubes become covalently linked to the graphene film through carbon-carbon bonds that are located at one or more junctions between the carbon nanotubes and the graphene film. In addition, the grown carbon nanotubes are in ohmic contact with the graphene film through the carbon-carbon bonds at the one or more junctions. The one or more junctions may include seven-membered carbon rings. Also provided are the formed graphene-carbon nanotube hybrid materials.
Tour; James M. (Bellaire, TX), Zhu; Yu (Houston, TX), Li; Lei (Houston, TX), Yan; Zheng (Houston, TX), Lin; Jian (Houston, TX)
14/ 358,864
November 19, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with government support under Grant No. DE-FC36-05GO15073, awarded by the U.S. Department of Energy; Office of Naval Research Grant No. N00014-09-1-1066, awarded by the U.S. Department of Defense; and Air Force Office of Scientific Research Grant No. FA9550-12-1-0035, also awarded by the U.S. Department of Defense. The government has certain rights in the invention.