What is Graphene?


Graphene was discover in 2004 by Geim and Novoselov, which achievement leaded to their Physics Nobel Prize attribution in 2010. Basically, graphene is one of the many carbon allotropes having a two-dimensional crystalline structure made of hexagonal “rings” of carbon arranged like a honeycomb.

Conservative scientists are claiming that graphene is only one-atom thick while the less conservative others are assuming that it can have several more layers. In fact, there are many different kinds of graphene-based materials, all of them to perform on dissimilar applications. Briefly, at its scale it is strong and stiff, thin, transparent, light, and a great conductor of electricity and heat.

Any question you've about graphene or applications, contact us.

Any question you've about graphene or applications, contact us.

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Areas of Research


Electromagnetic Interference (EMI Shielding):

Graphenest is developing a electrical conductive graphene-based ink to coat different substrates in order to guarantee 99.9% attenuation of radio-frequency waves. This ink can help mid-tier automotive and aerospace manufacturers to substitute heavy traditional materials, like metal meshes and sheets. Thus, this graphene-based ink has also anchored on itself the possibility of reduce weight of the final application, which can be very important to increase electrical vehicles autonomy.

Gas barrier films:

Graphenest is developing a coating system to improve the gas barrier of moisture and oxygen of multilayer packaging solutions. By tailoring the graphene-based ink (i.e., surface tension and adhesion) and method (i.e., spray coating, roll-to-roll or dip-coating) it is possible to generate an improvement of 90% on the gas blocking. Food and cosmetics markets are the final users of this technology.

Lighter and stronger composites:

Automotive, naval and aerospace markets are among those who are demanding lighter and stronger materials to withstand extreme conditions. Graphene plays an important role on this issue, either by being a polymer filler or by being an epoxy resin additive for fiberglass and carbon fibre reinforcement. Graphenest has work in progress on this area, namely on the construction of a carbon-fibre reinforced kayak and naval poles.

Lubricants:

Graphene can increase capacity of a lubricant by reducing even more friction and wear. Its tribological potential as a lubricant remains relatively unexplored that is why it is just about to start on Graphenest.

Our Methods


In order to characterize its products, Graphenest uses the following methods

X-ray photoelectron spectroscopy – to to analyze the element composition and the surface chemistry of both graphite (raw-material) and graphene

UV-Vis Spectroscopy – to determine graphene concentration on dispersions

Raman Spectroscopy – to infer graphene layers numbers, degree of defects and impurities

Electron and atomic force microscopy – to examine graphene morphology, like flake sizes, thickness, number of layers, boundary and edge-defects and impurities

Bellow you can see some of the tests we’re making: