Process and apparatus for carbon nanotube formation
US11820662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jan 1, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Embodiments of the present disclosure generally relate to processes and apparatus for carbon nanotube formation, and more specifically, to processes and apparatus for carbon nanotube alignment. In an embodiment, a process for aligning carbon nanotubes is provided. The process includes introducing an aqueous solution to a pressure-controlled system that includes a silanated glass element, a porous membrane, and a container. The process further includes applying a pressure differential across the porous membrane to draw the aqueous solution from the silanated glass element, through the porous membrane, and to the container at a flow rate to form a filtrate disposed within the container and a retentate disposed above the porous membrane, the retentate comprising carbon nanotubes. The process further includes optically detecting a position of a meniscus of the aqueous solution in the silanated glass element. Apparatus for forming and aligning carbon nanotubes are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.