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Title: Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads

Abstract

A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.

Inventors:
; ;
Issue Date:
Research Org.:
Nanotek Instruments, Inc., Dayton, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1163838
Patent Number(s):
8883114
Application Number:
12/005,015
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
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Dec 26
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Zhamu, Aruna, Guo, Jiusheng, and Jang, Bor Z. Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads. United States: N. p., 2014. Web.
Zhamu, Aruna, Guo, Jiusheng, & Jang, Bor Z. Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads. United States.
Zhamu, Aruna, Guo, Jiusheng, and Jang, Bor Z. Tue . "Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads". United States. https://www.osti.gov/servlets/purl/1163838.
@article{osti_1163838,
title = {Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads},
author = {Zhamu, Aruna and Guo, Jiusheng and Jang, Bor Z},
abstractNote = {A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {11}
}

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patent, January 1990


Method of manufacturing flexible graphite
patent, April 1996


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patent, December 1997


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patent, September 2001


Chemical manufacture of nanostructured materials
patent, March 2005


Nano-scaled graphene plates
patent, July 2006


Graphite intercalation and exfoliation process
patent, September 2006


Electrochemical performance of expanded mesocarbon microbeads as anode material for lithium-ion batteries
journal, January 2006


Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)
journal, January 1995


    Works referencing / citing this record:

    Large scale production of oxidized graphene
    patent, March 2017


    Large scale production of thinned graphite, graphene, and graphite-graphene composites
    patent, October 2016