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Gas separation membrane and method of preparing the same
US9533265B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9533265-B2 |
| Application number | US-201313767323-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2013 |
| Priority date | May 17, 2012 |
| Publication date | Jan 3, 2017 |
| Grant date | Jan 3, 2017 |
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- Title
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Abstract
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A gas separation membrane including a porous layered support; and a gas separating active layer which is disposed on the porous layered support and includes a functionalized graphene.
First claim
Opening claim text (preview).
What is claimed is: 1. A gas separation membrane comprising: a porous layered support; and a gas separating active layer which is disposed on the porous layered support and which consists of 2 to 100 layers of a functionalized graphene, wherein the gas separating active layer is effective to separate H 2 and CO 2 , H 2 and CO, H 2 and CH 4 , H 2 and N 2 , He and N 2 , N 2 and CO 2 , CH 4 and CO 2 , or a combination thereof, and comprises a crack having a width of about 100 nanometers or less. 2. The gas separation membrane of claim 1 , wherein the functionalized graphene is a graphene oxide, a reduced graphene oxide, or a combination thereof. 3. The gas separation membrane of claim 2 , wherein the functionalized graphene has a C/O content ratio of about 1 to about 9.5. 4. The gas separation membrane of claim 1 , wherein a thickness of the gas separating active layer is about 1 nanometer to about 6 micrometers. 5. The gas separating membrane of claim 1 , wherein the functionalized graphene further comprises a nitrogen functional group, a phosphorus functional group, a sulfur functional group, a hydrocarbon functional group, a halogen functional group, or a combination thereof. 6. The gas separating membrane of claim 1 , wherein the functionalized graphene is in the form of a flake. 7. The gas separation membrane of claim 1 , wherein the porous layered support comprises a metal, a ceramic, or a polymer, or a combination thereof. 8. The gas separation membrane of claim 7 , wherein the metal is iron, steel, or a combination thereof. 9. The gas separation membrane of claim 7 , wherein the ceramic is at least one selected from glass, Al 2 O 3 , zirconia, TiO 2 , zeolite, or a combination thereof. 10. The gas separation membrane of claim 7 , wherein the polymer is polysulfone, polyvinylidene fluoride, cellulose, polyacrylonitrile, polyethersulfone, polyimide, or a combination thereof. 11. A gas separator comprising the gas separation membrane of claim 1 .
Assignees
Inventors
Classifications
by sol-gel transition · CPC title
- B01D71/021Primary
Carbon · CPC title
characterised by specific membranes · CPC title
Three or more layers · CPC title
- B01D71/0211Primary
Graphene or derivates thereof · CPC title
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- What does patent US9533265B2 cover?
- A gas separation membrane including a porous layered support; and a gas separating active layer which is disposed on the porous layered support and includes a functionalized graphene.
- Who is the assignee on this patent?
- Samsung Electronics Co Ltd, Industry-Univ Coop Found Hanyang Univ
- What technology area does this patent fall under?
- Primary CPC classification B01D71/021. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 03 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).