Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads
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.
- Research Organization:
- Nanotek Instruments, Inc., Dayton, OH (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- Nanotek Instruments, Inc. (Dayton, OH)
- Patent Number(s):
- 8,883,114
- Application Number:
- 12/005,015
- OSTI ID:
- 1163838
- Country of Publication:
- United States
- Language:
- English
Electrochemical performance of expanded mesocarbon microbeads as anode material for lithium-ion batteries
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journal | January 2006 |
Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)
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journal | January 1995 |
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