Ion Selectivity, Current, and Water Flow Regulation in Ti₃C₂ MXene Nanopores.

ABSTRACT: Recent years have seen a growing interest in zero-dimensional (0D) transport phenomena occurring across two-dimensional (2D) materials for their potential applications to nanopore technology such as ion separation and molecular sensing. Herein, we investigate ion transport through 1 nm-wide nanopores in Ti₃C₂ MXene using molecular dynamics simulations. The high polarity and fish-bone arrangement of the Ti₃C₂ MXene offer a built-in potential and an atomic-scale distortion to the nanopore, causing an adsorption preference for cations. Our observation of variable cation-specific ion selectivity and Coulomb blockade highlights the complex interplay between adsorption affinity and cation size. The cation-specific ion selectivity can induce both the io

SUBMITTER: Lee S 

PROVIDER: S-EPMC11311525 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature