Nanowire-assisted electrochemical perforation of graphene oxide nanosheets for molecular separation.

ABSTRACT: Two-dimensional nanosheets, e.g., graphene oxide (GO), have been widely used to fabricate efficient membranes for molecular separation. However, because of poor transport across nanosheets and high width-to-thickness ratio, the permeation pathway length and tortuosity of these membranes are extremely large, which limit their separation performance. Here we report a facile, scalable, and controllable nanowire electrochemical concept for perforating and modifying nanosheets to shorten permeation pathway and adjust transport property. It is found that confinement effects with locally enhanced charge density, electric field, and hydroxyl radical generation over nanowire tips on anode can be executed under low voltage, thereby inducing confined direct electron loss and indirect oxidation to ref

SUBMITTER: Liu H 

PROVIDER: S-EPMC10762124 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature