US 12,071,348 B2
Graphene nanopore manufacturing method using detachable functional groups and graphene sheet having graphene nanoholes formed thereby
Gwan-Hyoung Lee, Seoul (KR); and Eunji Ji, Seoul (KR)
Assigned to SGRAPHENE, Seoul (KR); and SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed by SGRAPHENE, Seoul (KR); and SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul (KR)
Filed on May 28, 2021, as Appl. No. 17/333,724.
Claims priority of application No. 10-2021-0065950 (KR), filed on May 24, 2021.
Prior Publication US 2022/0371897 A1, Nov. 24, 2022
Int. Cl. C01B 32/194 (2017.01)
CPC C01B 32/194 (2017.08) [C01P 2004/04 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for forming graphene nanoholes in a graphene sheet, the method comprising:
a process (a) of forming a functional group-bonded region in a graphene sheet; and
a process (b) of heating the graphene sheet having the functional group-bonded region to remove the functional group-bonded region to form nanoholes,
wherein the process (a) is performed by making an activation gas containing fluorine (F) react with a graphene sheet to form a functional group-bonded region, and
wherein the process (a) is performed in the presence of a semiconducting catalyst or a metallic catalyst.