In situ generation of (sub) nanometer pores in MoS₂ membranes for ion-selective transport.

ABSTRACT: Ion selective membranes are fundamental components of biological, energy, and computing systems. The fabrication of solid-state ultrathin membranes that can separate ions of similar size and the same charge with both high selectivity and permeance remains a challenge, however. Here, we present a method, utilizing the application of a remote electric field, to fabricate a high-density of (sub)nm pores in situ. This method takes advantage of the grain boundaries in few-layer polycrystalline MoS₂ to enable the synthesis of nanoporous membranes with average pore size tunable from <1 to ~4 nm in diameter (with in situ pore expansion resolution of ~0.2 nm² s^-1). These membranes demonstrate selective transport of monovalent ions (K⁺, Na⁺ and

SUBMITTER: Hoenig E 

PROVIDER: S-EPMC11387774 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature