Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites

Zhamu, Aruna; Shi, Jinjun; Guo, Jiusheng; Jang, Bor Z

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Title: Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites

Abstract

A method of exfoliating a layered material to produce separated nano-scaled platelets having a thickness smaller than 100 nm. The method comprises: (a) providing a graphite intercalation compound comprising a layered graphite containing expandable species residing in an interlayer space of the layered graphite; (b) exposing the graphite intercalation compound to an exfoliation temperature lower than 650.degree. C. for a duration of time sufficient to at least partially exfoliate the layered graphite without incurring a significant level of oxidation; and (c) subjecting the at least partially exfoliated graphite to a mechanical shearing treatment to produce separated platelets. The method can further include a step of dispersing the platelets in a polymer or monomer solution or suspension as a precursor step to nanocomposite fabrication.

Inventors:

Zhamu, Aruna ^[1]; Shi, Jinjun ^[2]; Guo, Jiusheng ^[1]; Jang, Bor Z ^[1]

Centerville, OH
Columbus, OH

Issue Date:: 2012-03-13

Research Org.:: Nanotek Instruments, Inc. (Dayton, OH)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1039761

Patent Number(s):: 8132746

Application Number:: 11/787,442

Assignee:: Nanotek Instruments, Inc. (Dayton, OH)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y40/00 - Manufacture or treatment of nanostructures

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B32/15 - Nano-sized carbon materials
C01B32/184 - Preparation
C01B32/22 - Intercalation
C01B32/225 - Expansion
C01B32/23 - Oxidation

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, and Jang, Bor Z. Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites.  United States: N. p., 2012. 
        Web.

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                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, & Jang, Bor Z. Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites.  United States.

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                    Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, and Jang, Bor Z. Tue .  
        "Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites".  United States.  https://www.osti.gov/servlets/purl/1039761.

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@article{osti_1039761,

  title        = {Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites},

  author       = {Zhamu, Aruna and Shi, Jinjun and Guo, Jiusheng and Jang, Bor Z},

  abstractNote = {A method of exfoliating a layered material to produce separated nano-scaled platelets having a thickness smaller than 100 nm. The method comprises: (a) providing a graphite intercalation compound comprising a layered graphite containing expandable species residing in an interlayer space of the layered graphite; (b) exposing the graphite intercalation compound to an exfoliation temperature lower than 650.degree. C. for a duration of time sufficient to at least partially exfoliate the layered graphite without incurring a significant level of oxidation; and (c) subjecting the at least partially exfoliated graphite to a mechanical shearing treatment to produce separated platelets. The method can further include a step of dispersing the platelets in a polymer or monomer solution or suspension as a precursor step to nanocomposite fabrication.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2012},

  month        = {3}

}

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Works referenced in this record:

Electric Field Effect in Atomically Thin Carbon Films
journal, October 2004

Novoselov, K. S.
Science, Vol. 306, Issue 5696, p. 666-669
https://doi.org/10.1126/science.1102896

Superior Thermal Conductivity of Single-Layer Graphene
journal, March 2008

Balandin, Alexander A.; Ghosh, Suchismita; Bao, Wenzhong
Nano Letters, Vol. 8, Issue 3, p. 902-907
https://doi.org/10.1021/nl0731872

The rise of graphene
journal, March 2007

Geim, A. K.; Novoselov, K. S.
Nature Materials, Vol. 6, Issue 3, p. 183-191
https://doi.org/10.1038/nmat1849

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
journal, July 2008

Lee, C.; Wei, X.; Kysar, J. W.
Science, Vol. 321, Issue 5887, p. 385-388
https://doi.org/10.1126/science.1157996

Graphite Nanoplatelet Reinforcement of Electrospun Polyacrylonitrile Nanofibers
journal, January 2005

Mack, J. J.; Viculis, L. M.; Ali, A.
Advanced Materials, Vol. 17, Issue 1
https://doi.org/10.1002/adma.200400133

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Similar Records

Title: Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites

Abstract

Citation Formats

Electric Field Effect in Atomically Thin Carbon Films journal, October 2004

Superior Thermal Conductivity of Single-Layer Graphene journal, March 2008

The rise of graphene journal, March 2007

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene journal, July 2008

Graphite Nanoplatelet Reinforcement of Electrospun Polyacrylonitrile Nanofibers journal, January 2005

Electric Field Effect in Atomically Thin Carbon Films
journal, October 2004

Superior Thermal Conductivity of Single-Layer Graphene
journal, March 2008

The rise of graphene
journal, March 2007

Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
journal, July 2008

Graphite Nanoplatelet Reinforcement of Electrospun Polyacrylonitrile Nanofibers
journal, January 2005