Water cluster in hydrophobic crystalline porous covalent organic frameworks.

ABSTRACT: Progress over the past decades in water confinement has generated a variety of polymers and porous materials. However, most studies are based on a preconception that small hydrophobic pores eventually repulse water molecules, which precludes the exploration of hydrophobic microporous materials for water confinement. Here, we demonstrate water confinement across hydrophobic microporous channels in crystalline covalent organic frameworks. The frameworks are designed to constitute dense, aligned and one-dimensional polygonal channels that are open and accessible to water molecules. The hydrophobic microporous frameworks achieve full occupation of pores by water via synergistic nucleation and capillary condensation and deliver quick water exchange at low pressures. Water confinement experiment

SUBMITTER: Tan KT 

PROVIDER: S-EPMC8604923 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature