Metal-Organic Framework (MOF) Morphology Control by Design

Chemistry. 2022 Mar 28;28(18):e202200334. doi: 10.1002/chem.202200334. Epub 2022 Feb 28.

Abstract

Exerting morphological control over metal-organic frameworks (MOFs) is critical for determining their catalytic performance and to optimize their packing behavior in areas from separations to fuel gas storage. A mechanism-based approach to tailor the morphology of MOFs is introduced and experimentally demonstrated for five cubic Zn4 O-based MOFs. This methodology provides three key features: 1) computational screening for selection of appropriate additives to change crystal morphology based on knowledge of the crystal structure alone; 2) use of additive to metal cluster geometric relationships to achieve morphologies expressing desired crystallographic facets; 3) potential for suppression of interpenetration for certain phases.

Keywords: additive; crystal growth rate; crystal morphology; metal-organic framework (MOF); morphology engineering.