Ultrathin metal-organic framework membrane production by gel-vapour deposition.

ABSTRACT: Ultrathin, molecular sieving membranes composed of microporous materials offer great potential to realize high permeances and selectivities in separation applications, but strategies for their production have remained a challenge. Here we show a route for the scalable production of nanometre-thick metal-organic framework (MOF) molecular sieving membranes, specifically via gel-vapour deposition, which combines sol-gel coating with vapour deposition for solvent-/modification-free and precursor-/time-saving synthesis. The uniform MOF membranes thus prepared have controllable thicknesses, down to ~17 nm, and show one to three orders of magnitude higher gas permeances than those of conventional membranes, up to 215.4 × 10^-7 mol m^-2 s^-1 Pa^-1 for H

SUBMITTER: Li W 

PROVIDER: S-EPMC5581339 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature