About xGnP® Graphene Nanoplatelets
Graphene Nanoplatelets represent a new class of carbon nanoparticles with multifunctional properties

Physical Structure and Properties

xGnP® brand graphene nanoplatelets have a "platelet" morphology, meaning they have a very thin but wide aspect. Aspect ratios for this material can range into the thousands. Each particle consists of several sheets of graphene with an overall thickness ranging from an average of about 5 nm to about 15nm, depending on grade. Particle diameters can range from sub-micron to 50+ microns.

Physical properties of individual particles are shown below.

xgnp properties table

Typically, xGnP® Graphene Nanoplatelets are shipped as a bulk powder, with bulk characteristics as follows:

  • Physical appearance: a fine black or grey powder
  • Bulk density: varies with average particles size from 0.05 to 0.25 g/cc
  • Oxygen content: varies with particle size, but normally in the range of 3 to 4 percent
  • Residual acid and other impurities: less than .5 wt%

Each individual particle normally has an irregular shape and a clean surface. Normally, individual particles have a clean surface consisting of sp2 carbon and are hydrophobic by nature. Naturally-occuring functional groups on the edges of the particles include compounds like ether, hydroxyl and carboxyl groups.

Nanoplatelet representation


Note: the properties and measurements provided on this page are shown for comparison purposes only. The actual performance of xGnP® in a composite application will, of course, depend on matrix materials, processing, densities, and dispersion of the materials. In some cases, surface treatments or other functionalization can significantly improve results. For more information or for detailed recommendations regarding your application, please contact our research scientists.