US 12,257,554 B2
Controlled nanoscale-perforated two dimensional materials and membranes
Shashikant P. Patole, Abu Dhabi (AE); and Issam Qattan, Abu Dhabi (AE)
Assigned to Khalifa University of Science and Technology, Abu Dhabi (AE)
Appl. No. 17/600,055
Filed by Khalifa University of Science and Technology, Abu Dhabi (AE)
PCT Filed Mar. 24, 2020, PCT No. PCT/IB2020/052760
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/201914, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/826,729, filed on Mar. 29, 2019.
Prior Publication US 2022/0184559 A1, Jun. 16, 2022
Int. Cl. B01D 67/00 (2006.01); B01D 69/10 (2006.01); B01D 71/02 (2006.01); C02F 1/44 (2023.01); C02F 103/08 (2006.01)
CPC B01D 67/006 (2013.01) [B01D 69/108 (2022.08); B01D 71/0211 (2022.08); C02F 1/441 (2013.01); C02F 2103/08 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of producing a nanoporous membrane, the method comprising:
coating a planar substrate with reactive metal adatoms to form a coated planar substrate in which the reactive metal adatoms are in contact with the planar substrate;
accomplishing an oxidation-reduction (REDOX) reaction between the reactive metal adatoms and the planar substrate in the coated planar substrate that causes the reactive metal adatoms to form nanoscale pores in the planar substrate to form a nanoporous planar material; and
forming the nanoporous planar material into a nanoporous membrane, wherein forming the nanoporous membrane comprises:
depositing flakes of the nanoporous planar material onto a porous substrate;
compressing the flakes of the nanoporous planar material and the porous substrate, wherein compressing the flakes of the nanoporous planar material and the porous substrate comprises feeding the flakes of the nanoporous planar material and the porous substrate through compression rollers; and
cleaving the nanoporous membrane from the porous substrate.