Ontology highlight
ABSTRACT:
SUBMITTER: Walker MI
PROVIDER: S-EPMC5333182 | biostudies-literature | 2017 Feb
REPOSITORIES: biostudies-literature
Walker Michael I MI Ubych Krystian K Saraswat Vivek V Chalklen Edward A EA Braeuninger-Weimer Philipp P Caneva Sabina S Weatherup Robert S RS Hofmann Stephan S Keyser Ulrich F UF
ACS nano 20170216 2
From a systematic study of the concentration driven diffusion of positive and negative ions across porous 2D membranes of graphene and hexagonal boron nitride (h-BN), we prove their cation selectivity. Using the current-voltage characteristics of graphene and h-BN monolayers separating reservoirs of different salt concentrations, we calculate the reversal potential as a measure of selectivity. We tune the Debye screening length by exchanging the salt concentrations and demonstrate that negative ...[more]