US 11,806,678 B2
Nanoporous graphene membranes
Manoj K. Kolel-Veetil, Alexandria, VA (US); and Paul E. Sheehan, Springfield, VA (US)
Assigned to The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed by The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on Mar. 4, 2021, as Appl. No. 17/192,380.
Application 17/192,380 is a continuation of application No. 14/207,913, filed on Mar. 13, 2014, granted, now 11,103,837.
Claims priority of provisional application 61/789,981, filed on Mar. 15, 2013.
Prior Publication US 2021/0187447 A1, Jun. 24, 2021
Int. Cl. B01D 71/44 (2006.01); B01D 71/02 (2006.01); C02F 1/44 (2023.01); B01D 53/22 (2006.01); B01D 69/14 (2006.01)
CPC B01D 71/44 (2013.01) [B01D 53/228 (2013.01); B01D 69/148 (2013.01); B01D 71/021 (2013.01); C02F 1/442 (2013.01); B01D 2053/221 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method comprising:
depositing a hexaiodo-substituted macrocycle onto a substrate comprising a Ag(111) surface;
coupling the macrocycle to form a nanoporous graphene sheet;
layering the nanoporous graphene sheet and substrate onto a nanoporous membrane with the nanoporous graphene sheet in contact with the nanoporous membrane; and
etching away the substrate;
chemically functionalizing the nanoporous graphene sheet to form a functionalized nanoporous article; and
layering two of the functionalized nanoporous articles together with the chemical functionalizations facing each other;
wherein the chemical functionalizations are crosslinked to each other.