Continuous synthesis of high quality metal-organic framework HKUST-1 crystals and composites via aerosol-assisted synthesis
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
2018 Elsevier Ltd Highly crystalline metalorganic framework (MOF) crystals are desirable for their practical applications and synthesized predominantly using batch processes that are less scalable. More scalable continuous processes for MOF synthesis such as spray-drying and aerosol-assisted synthesis have been recently developed. However, these techniques often resulted in poorly crystalline nanoparticles and their assemblies primarily due to extremely short (sub-second) crystallization time and fast solvent evaporation. Here we report facile continuous aerosol-assisted production of highly crystalline HKUST-1 crystals with relatively narrow size distributions as well as their composites with both inorganic and organic materials exhibiting unique microstructures. Solvents with high donor numbers and low vapor pressures were found desirable to increase both crystallization and solvent evaporation times. Dimethyl sulfoxide (DMSO) was used as a co-solvent with DMF to form phase-pure high quality HKUST-1 crystals revealed by SEM, XRD, and N2 adsorption. Furthermore, alumina nanoparticles and polyethersulfone (PES) polymer were incorporated to create unique microstructures.
