Nanoporous graphene membranes
US11103837B1 · kind B1 · utility
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26Claims
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Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An article having a nanoporous membrane and a nanoporous graphene sheet layered on the nanoporous membrane with the nanoporous membrane and the nanoporous graphene sheet in direct contact. A method of: depositing a layer of a diblock copolymer onto a graphene sheet, etching a minor phase of the diblock copolymer and a portion of the graphene in contact with the minor phase to form a nanoporous article having a nanoporous graphene sheet and a nanoporous layer of a polymer, and removing the nanoporous layer of a polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.