US 12,263,529 B2
Conductive nanostructure purification
Samuel Lumahan Robillos, Milpitas, CA (US); Ian Storms Moody, Soquel, CA (US); and Haixia Lumahan Dai, Pleasanton, CA (US)
Assigned to Pine Castle Investments Limited, Tortola (VG)
Appl. No. 17/600,719
Filed by Pine Castle Investments Limited, Tortola (VG)
PCT Filed Apr. 1, 2020, PCT No. PCT/US2020/026059
§ 371(c)(1), (2) Date Oct. 1, 2021,
PCT Pub. No. WO2020/205900, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/828,654, filed on Apr. 3, 2019.
Prior Publication US 2022/0168807 A1, Jun. 2, 2022
Int. Cl. B22F 9/24 (2006.01); B03D 3/00 (2006.01); B22F 1/054 (2022.01); B22F 1/0545 (2022.01); B22F 1/07 (2022.01); B22F 1/10 (2022.01); B22F 1/107 (2022.01); B22F 1/148 (2022.01); H01B 1/02 (2006.01)
CPC B22F 9/24 (2013.01) [B03D 3/00 (2013.01); B22F 1/0545 (2022.01); B22F 1/0547 (2022.01); B22F 1/07 (2022.01); B22F 1/10 (2022.01); B22F 1/107 (2022.01); B22F 1/148 (2022.01); B22F 2304/05 (2013.01); H01B 1/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of purifying a metal nanostructure composition, the method comprising:
providing a solution within which metal nanostructures have been synthesized including first aspect ratio nanostructures and second aspect ratio nanostructures having an aspect ratio lower than the first aspect ratio nanostructures, the solution including a polyol and having a viscosity;
diluting the solution with a dilutant to lower the viscosity of the solution and provide a diluted solution; and
sedimenting the second aspect ratio nanostructures from the diluted solution, wherein the method includes introducing the diluted solution into a device that aids in retention of the first aspect ratio nanostructures in the diluted solution and removal of the second aspect ratio nanostructures that are sedimented from the diluted solution and the device includes a tray having a grooved bottom orientated traverse to an outflow direction associated with an outlet of the device.