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Publication Detail
Producing solution of dispersed graphenes used in e.g. sensors, involves contacting graphite having specific dimension with electronic liquid comprising metal and polar aprotic solvent
  • Publication Type:
    Patent
  • Authors:
    Skipper NT, Howard CA, Milner EM, Shaffer MSP
  • Publication date:
    03/01/2013
  • Territory:
    Europe
  • Awarded date:
    03/01/2013
  • Patent number:
    WO2013001266-A1
  • Filed date:
    26/06/2012
Abstract
NOVELTY - Producing a solution of dispersed graphenes involves contacting graphite having a dimension in the a-b plane of less than or equal to 10 mu m with an electronic liquid comprising a metal and a polar aprotic solvent. USE - For producing a solution of dispersed graphenes, where the dispersed graphene is in the form of individual monolayer graphene, graphene ribbons, graphene discs, graphene truncated cones or graphene cones (claimed); and in nanoelectronics, sensors, ultrathin coatings, composites, batteries, supercapacitors and hydrogen storage. ADVANTAGE - The method is possible to control the shape and a dimension of the graphene obtained by selecting the graphite starting material; and is done without extensive sonication or aggressive oxidation, thus the shape of the starting material is preserved. For example, if the graphite has elongated dimensions then these elongated dimensions will be preserved in the dispersed graphenes obtained. The method is possible to control whether the graphene is in the form of equiaxed sheets, ribbons, or other geometric shapes. These shapes are potentially advantageous for integration and design of active devices, or optimization of composite reinforcement properties.
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