(461b) Leveraging High Throughput Simulations for the Synthesis of Small Pore Zeolites with Repurposed Osdas

Generating simpler and less expensive OSDAs is essential to expand the palette of molecular sieves used in catalysis, separations, and ion-exchange. However, the complex interplay among synthesis conditions, including temperature, pH, precursor composition, as well as the unique structure-directing ability of organic and inorganic templates makes it difficult to predict a priori the outcome of particular synthesis experiment. Combining high throughput computational simulations capable of accurately predicting the interactions for thousands of OSDA-zeolite pairs with focused synthesis campaigns, we demonstrate a strategy to navigate the complex energetic landscape of templating organic molecules, identify suitable families of candidate structures, and down-select the simplest organic molecules for the synthesis of the target frameworks. Using CHA and AEI as representative examples, we will show these zeolite can be synthesized with simpler OSDA candidates, without altering physicochemical properties or catalytic performance (for the MTO reaction) compared to control materials. Overall, this work shows a new platform to find alternative organic directing agents that drive the formation of known zeolite frameworks with a higher phase selectivity, desired framework composition, or lower template cost.