Method of graphene exfoliation and/or stabilization and composition prepared therefrom
US11897771B2 · kind B2 · utility
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Key dates
| Filing date | May 11, 2022 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Jul 19, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides a method of graphene exfoliation and/or stabilization. Both graphene and silica are mixed in an organic solvent to form a liquid precursor, which is then directed through an orifice formed by a metal cylinder and a flat metal plate. The metal cylinder is pressed against the flat metal plate by a high pressure. The high shear between the metal cylinder and the flat metal plate breaks down the thick layers of graphene to thin layers, which are stably dispersed in the gel formed by the silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.