Liquid-exfoliated nanomaterials
US11634329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2019 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Feb 4, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Nanoplatelets are prepared from a 3D layered material by: providing a dispersion of the 3D layered material, pressurising the dispersion, rapidly depressurising the dispersion to create shear forces that exfoliate the 3D layered material into nanoplatelets; and/or providing a dispersion of the 3D layered material, forming a first flow of the dispersion along a first flowpath in a first direction, forming a second flow of the dispersion along a second flowpath in a second direction by reversing the first flow or by forming the second flow in a second flowpath, wherein the second flowpath is substantially reverse and non-coaxial with the first flowpath, whereby shear forces between material in the first flowpath and material in the second flowpath exfoliate the 3D layered material into nanoplatelets. Also provided are apparatuses for carrying out the invention and nanoplatelets obtained by the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.