Applied Graphene Materials plc

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Graphene nanoplatelets

Graphene has a molecular structure comprising a single layer of carbon atoms bonded in a hexagonal structure. It is a single layer of graphite, which conversely can be thought of as a stack of graphene sheets.

Graphene is usually thought of as being a single sheet of carbon atoms, although the term graphene is generally accepted to apply to materials that are up to ten layers thick, the properties of which can be different to those of pure single-layer graphene. A sheet of graphene can likewise vary in size from nanometres to centimetres in 2-dimensions.

Graphene was first isolated in 2004 by Andre Geim and Konstantin Novoselov at Manchester University. They used sticky tape to remove single layers from the surface of graphite and deposit them on a silicon wafer. The isolation of graphene was a breakthrough for which Geim and Novoselov ultimately won the 2010 Nobel prize for Physics.

In its purest form, graphene possesses an unsurpassed combination of electrical, mechanical and thermal properties, which gives it the potential to replace existing materials in a wide range of applications and, in the long term, to enable new applications.

  • Mechanical strength

    The strong carbon–carbon bonds within a sheet of graphene open up the possibility for using either sheets of pure graphene in applications where the strength can be exploited directly or adding graphene to other materials to improve their mechanical strength.

  • Thermal conductivity

    The addition of graphene to a polymer or functional fluid can significantly increase the thermal conductivity of the material in applications such as oils, lubricants, heat sinks or thermal management devices.

  • Barrier properties

    Graphene is highly impermeable to both gases and liquids, which may be exploited via thin film barriers.

  • Lubricating properties

    Graphene exhibits low shear on surfaces in a wide range of environmental conditions.

  • Electrical properties

    Graphene may be suitable for applications where extremely high electrical conductivity is required, or, alternatively, it can be added to material in low concentrations to create or improve electrical conductivity in that end material.

  • Energy storage

    Graphene has phenomenally high energy density. Its storage capacity and rate of charging/discharging make it suitable for batteries and electrical supercapacitors.

graphene-nanoplatelets.jpgOur graphene powder is manufactured using a sustainable and proprietary ‘bottom-up’ process. 

We do not start with graphite or use any oxidation procedures during graphene production and therefore our graphene is almost completely free of graphitic impurities, graphene oxide or transition metals. This makes our graphene suitable for a wide range of applications.

We believe that the commercial value of graphene lies in the ability to transfer its intrinsic properties into other materials, thus creating higher value materials and products which possess specifically enhanced characteristics. We select from our product range to enable us to tailor the enhancement our customers are looking for.

If you would like to know more about our products please click here or contact our sales office on 01642 438214