Continuous Flow Synthesis of a Zr Magnetic Framework Composite for Post-Combustion CO2 Capture

Chemistry. 2019 Oct 11;25(57):13184-13188. doi: 10.1002/chem.201902560. Epub 2019 Sep 13.

Abstract

Metal-organic frameworks (MOFs) have an unprecedented ability to store gas molecules, however energy efficient regeneration remains challenging. Use of magnetic induction to aid this shows promise, but economical synthesis of the requisite composites is unresolved. Continuous flow chemistry has been reported as a rapid and reliable method of MOF synthesis, delivering step-change improvements in space time yields (STY). Here the scalable production of nanomaterials suitable for regeneration by magnetic induction is demonstrated. The zirconium MOF composite, MgFe2 O4 @UiO-66-NH2 is prepared using continuous flow chemistry resulting in a material of comparable performance to its batch counterpart. Upscaling using flow chemistry gave STY >25 times that of batch synthesis. Magnetic induced regeneration using this mass produced MFC for carbon capture is then demonstrated.

Keywords: adsorption; magnetic properties; metal-organic frameworks; nanostructures; synthetic methods.