(344ae) Finned Zeolite Catalyst: An Emerging Class of Hierarchical Material
This new class of mass transport enhanced zeolites were synthesized using secondary growth mixtures prepared with a finely tuned composition that allows for the epitaxial growth of fins on the surface of seed crystals. Here we will discuss examples of several finned zeolites with disparate 3-dimensional pore networks to demonstrate the broader applicability of this approach. We also demonstrate a proof of concept using commercial zeolite samples where finned analogues improve their catalytic performance. Our studies of synthesis and MTH catalytic testing as benchmark reaction are coupled with state-of-the-art characterization using techniques such as high-resolution electron tomography, operando spectroscopy, novel acid titration methods, and molecular modeling to correlate structural features of finned zeolites and their diffusion properties with enhanced catalyst performance.
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