Nanoporous graphene membranes
US10525421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jan 3, 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. A method of: depositing a layer of a diblock copolymer onto a graphene sheet, and 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. A method of: depositing a hexaiodo-substituted macrocycle onto a substrate having a Ag(111) surface; coupling the macrocycle to form a nanoporous graphene sheet; layering the graphene sheet and substrate onto a nanoporous membrane with the graphene sheet in contact with the nanoporous membrane; and etching away the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.