Details

Project TitleStable Dispersions of Graphitic Nanoplatelets via Reduction
Track Code2005-052
Short Description

Processes to produce stable dispersions of graphite nanoplatelets in aqueous or organic media.

#materials #graphene/graphite #composite

Abstract

Northwestern researchers have developed processes to produce stable dispersions of graphite nanoplatelets in aqueous or organic media. By distributing these treated nanoplatelets into various matrices, they provide useful mechanical, electrical and chemical properties to composite materials. Graphitic nanoplatelets are an inexpensive alternative to carbon nanotubes because of their predicted excellent in-plane mechanical, thermal and electrical properties. However, their full utilization requires complete separation and dispersion before incorporation into a matrix such as polymers. The investigators have devised two techniques to accomplish graphite exfoliation in aqueous or organic media. One process forms a polymer coating of graphitic nanoplatelets that are readily dispersible in water. This solution may be utilized for a variety of composite and device applications. A second process utilizes organic isocyanates to form graphitic nanoplatelets with chemical functions which would be useful for a variety of composite and device applications requiring organic media.

 
TagsMATERIALS: graphene/graphite, MATERIALS: composite
 
Posted DateApr 15, 2011 3:13 PM

Inventor(s)

Rodney Ruoff
SonBinh Nguyen
Sasha Stankovich

Applications

  • Fuel tank and fuel line coatings
  • Electronic enclosures
  • Automotive parts
  • Aerospace
  • Appliances
  • Sporting goods
  • Coatings and paints
  • Batteries
  • Fuel cells

Advantages

  • Scalable
  • Cost-effective
  • Exhibits high electrical conductivity

Publications

IP Status

Issued US Patent No. 7,914,844

Contact Information

Zach Brown, PhD
Invention Associate

(p) (847) 491-4629
(e) Zachary.Brown@northwestern.edu