Accessing accelerated molecular diffusion by nanopore alignment in a MOF thin film

Abstract

Molecular diffusion through a porous membrane can be accelarated by adjusting the nanopore windows and channels along the diffusion path i.e. across the membrane thickness. We evaluate this process in...

Macroscopic alignment of metal–organic framework crystals in specific crystallographic orientations

“…53,54 Two-dimensional (2D) architectures obtained from the crystal growth on the substrates can provide significant advantages in device fabrication such as MOF films and membranes. 49,[66][67][68][69][70][71] An approach to achieving macroscopic epitaxial growth of oriented 2D film of MOFs involves initially depositing seed MOF crystals onto substrates, followed by subsequent growth of these identical crystals (Fig. 2a).…”

“…53,54 Two-dimensional (2D) architectures obtained from the crystal growth on the substrates can provide significant advantages in device fabrication such as MOF films and membranes. 49,66–71…”

A roadmap to enhance gas permselectivity in metal–organic framework-based mixed-matrix membranes

“…In the cases of neat MOF thin film membranes, such pore alignment did result into higher flux and sieving performance. 133,134 Although beneficial, achieving such alignment is difficult in the MMM structure. Mostly, this is because the filler-polymer mixing process is not well-controlled.…”

Steering diffusion selectivity of chemical isomers within aligned nanochannels of metal-organic framework thin film

“…While the computational screening approaches for MOF-membrane design have received a signi cant interest, 26,27 experimental manipulation of diffusivity has remained challenging. Recent experimental efforts, such as downsizing MOF crystallite size, morphology control, 28 controlling nanochannel orientation [29][30][31] and employing novel heterostructure design [32][33][34][35][36] improve molecular diffusivity, however do not predictively tune the diffusivity.…”