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US 2021/0229048 A1Published application
Selectively permeable graphene oxide element
AssigneeNitto Denko Corporation
InventorsShijun Zheng, Lin Weiping, Peng Wang, Isamu Kitahara, Bita Bagge, John Ericson
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Abstract
Described herein is a composite comprising a graphene material and a sulfonated polymer material. The graphene/sulfonated polymer composite is coated onto a substrate to provide a selectively permeable membrane. The selectively permeable membranes of the present disclosure provide high moisture permeability and low gas permeability.
Claims21
A membrane for dehydration of a gas, comprising:
- a support;
- a composite comprising a graphene oxide compound and a sulfonated polymer, wherein the sulfonated polymer comprises sulfonated polyvinyl alcohol, sulfonated polyacrylic acid, sulfonated polyether ether ketone, sulfonated polystyrene, or a combination thereof;
- wherein the composite is coated on the support;
- and
- wherein the membrane has high moisture permeability and low gas permeability.
2 more elements
(canceled)
Dependencies are inferred from the claim text.