Case 13080

CVD-grown graphite nanoribbons

Keywords:

Graphene, Nanoribbons, CVD

Applications:

The fabrication of novel composites, gas storage devices, nanosensors, catalysts, batteries, etc.

Problem:

    Limit of the production amount of nanocarbon and difficulty in the manipulation of nanoribbons

Technology:

The novel material consists of a plurality of thin graphite ribbons having long and highly crystalline nanoribbons. The bulk production of thin graphite ribbons is achieved with single-step and simple chemical vapor deposition (CVD) under ambient pressure and a temperature of 9500C. A voltage is applied across the length of the thin graphite ribbons to cause current flow so as to increase crystallinity as well as establishing interplanar stacking order and well-defined graphene edges. Heat treatment could also be applied to the nanoribbons up to 28000C in order to modify their structure and properties significantly. These ribbons could also be exfoliated and cut into shorter pieces or into narrow ribbons.

Advantages:

    Bulk synthesis of a novel form of nanocarbon and ambient pressure CVD

Inventors:
  • Professor Mildred S. Dresselhaus (Department of Physics and EECS, MIT)
  • Xiaoting Jia (Department of Material Science and Engineering, MIT)
  • Professor Mauricio Terrones (IPICYT, Mexico)
  • Professor Humberto Terrones (IPICYT, Mexico)
  • Jessica Campos-Delgado (IPICYT, Mexico)
  • José Manuel Romo-Herrera (IPICYT, Mexico)
  • Edgar E. Gracía-Espino (Institute for Scientific and Technological Research of San Luis Potosi, Mexico)
  • Professor Morinobu Endo (Shinshu University, Japan)

Intellectual Property:

U.S. Patent Application Number 12/042544, filed on March 5, 2008

Publications:

Jia et al. Controlled formation of sharp zigzag and armchair edges in graphic nanoribbons. Science 323, 1701-1705 (2009).

Jia et al. Loop formation in graphitic nanoribbon edges using furnace heating or Joule heating, J. Vac. Sci. Technol. B27, 1996-2002 (2009).

Campos-Delgado et al. Thermal stability studies of CVD-grown graphene nanoribbons: Defect annealing and loop formation. Chem. Phys. Lett., 469, 177-182 (2009).

Campos-Delgado et al. Resonant Raman Study on Bulk and Isolated Graphitic Nanoribbons. Adv. Mat. (2009). DOI: 10.1002/smll.200901059.

Campos-Delgado et al. Bulk Production of a New Form of sp2 Carbon: Crystalline Graphene Nanoribbons. Nano Lett. 8, 2773-2778 (2008).

Last revised:October 28, 2009

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