The University of Manchester

Robert Angus William Dryfe

Ian Kinloch

Amr Abdelkader

Ian Anthony Kinloch

Amr M Abdelkader

The present invention provides a method for the production in an electrochemical cell of one or more of graphene, graphite nanoplatelet structures having a thickness of less than 100 nm, and graphane, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode which may be graphitic or another material; and (c) an electrolyte selected from (i) an ionic liquid; (ii) a deep eutectic solvent; and (iii) a solid ionic conductor, optionally further comprising (iv) one or more ionic species, wherein the amount of (i), (ii) or (iii) and (iv) is greater than 50 wt % based on the total weight of the electrolyte; and wherein the electrolyte includes a mixture of different cations; and wherein the method comprises the step of passing a current through the cell to intercalate ions into the graphitic negative electrode so as to exfoliate the graphitic negative electrode.

Production of graphene and graphane

A method of producing graphene by the electrochemical insertion of alkylammonium cations in a solvent into graphite is disclosed.

Production of graphene

A method for the production of graphene and graphite nanoplatelet structures having a thickness of less than 100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode which may be graphitic or another material; and (c) an electrolyte which is ions in a solvent where the cations are organic ions and metal ions; and wherein the method comprises the step of passing a current through the cell.

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Manchester, United Kingdom

Robert Angus William Dryfe