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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:
 [1];  [2];  [1];  [1]
  1. Centerville, OH
  2. Columbus, OH
Issue Date:
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):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
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.
Zhamu, Aruna, Shi, Jinjun, Guo, Jiusheng, & Jang, Bor Z. Low-temperature method of producing nano-scaled graphene platelets and their nanocomposites. United States.
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.
@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


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