Patent ID: 8834967
Filing Date: 2014-09-16
Classification: B82Y,C01B,Y10S,Y10T

Abstract:
1. A method of forming pores in a graphene sheet, the method comprising: locating a graphene sheet in vacuum containing a plurality of passivation elements; forming at least one pore having a first diameter in the graphene sheet via an e-beam, the e-beam inducing a plurality of active carbon sites at edges of each nanopore, such that the passivation elements bond to the active carbons sites; and exposing the carbon sites to the plurality of passivation elements for a predetermined period of time such that the passivation elements bond to the active carbon sites to form covalent bonds between the passivation elements and the active carbon sites and extend into the at least one pore to decrease the initial diameter, wherein the passivation elements are selected from a group comprising styrene and ethylene.