Particle Size and Morphological Effects on Surface Catalysis with ZIF-8
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Metal-organic frameworks (MOFs) are a class of versatile, highly porous materials whose structure and modifiable internal (pore)/external (surface) chemical environments make them amenable for a wide range of applications including gas storage and catalysis.  Recently, particle size has been shown to impact the physical and structural properties of MOFs; therefore careful consideration of the particle size and surface chemistry of MOFs must considered when examining a MOF for a specific application.  MOFs have been utilised for a number of heterogeneous catalytic pathways, but few studies have focused on the interplay of particle size and the surface chemistry of MOFs on their catalytic activity.
This contribution will present a recent project focused on surface catalysis with MOFs. Zeolitic imidazole framework (ZIF-8) has shown potential for Lewis acid/base surface-catalysed reactions, for example the Knoevenagel condensation and transesterifcation of triglycerides for the production of biodiesel.  The impact of particle size and morphology on the catalysis of a transesterification reaction at the surface of ZIF-8 will be discussed.
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