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US 12,122,677 B2Granted
Method of manufacturing a graphene/graphehe oxide layer and a graphene/graphehe oxide-coated support
AssigneeAhlstrom Oyj
InventorsGöran Bolin, Erkki Laiti, Eric Rousset
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Abstract
There is provided a method of manufacturing a graphene/graphene oxide layer comprising the steps of: providing a suspension of graphene/graphene oxide in a suspension liquid, applying the suspension on a support, heating the suspension and the support to evaporate liquid to form a layer of graphene/graphene oxide on the support, subjecting the graphene/graphene oxide layer and the support to pressure, and subjecting the graphene/graphene oxide layer to annealing process.
Claims16
A method of manufacturing a graphene and graphene oxide layer comprising the steps of:
- a) preparing a suspension of a mixture of graphene and graphene oxide comprising a mixture of flake shaped graphene and -graphene oxide particles in a suspension liquid,
- wherein the suspension liquid is water wherein the suspension is free of nano-fibrillated cellulose,
- b) coating the suspension on a paper support,
- c) heating the suspension and the support to evaporate at least a part of the suspension liquid for forming a layer of graphene and graphene oxide on the support, and
- d) pressing the layer of graphene and graphene oxide and the support between two objects.
2 more elements
Dependencies are inferred from the claim text.