Abstract
Designing zeolite catalysts with improved mass transport properties is crucial for restrictive networks of either one- or two-dimensional pore topologies. Here, we demonstrate the synthesis of finned ferrierite (FER), a commercial zeolite with two-dimensional pores, where protrusions on crystal surfaces behave as pseudo nanoparticles. Catalytic tests of 1-butene isomerization reveal a 3-fold enhancement of catalyst lifetime and an increase of 12 % selectivity to isobutene for finned samples compared to corresponding seeds. Electron tomography was used to confirm the identical crystallographic registry of fins and seeds. Time-resolved titration of Brønsted acid sites confirmed the improved mass transport properties of finned ferrierite compared to conventional analogues. These findings highlight the advantages of introducing fins through facile and tunable post-synthesis modification to impart material properties that are otherwise unattainable by conventional synthesis methods.
Original language | English (US) |
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Article number | e202113077 |
Journal | Angewandte Chemie - International Edition |
Volume | 61 |
Issue number | 8 |
DOIs | |
State | Published - Feb 14 2022 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2021 Wiley-VCH GmbH
Keywords
- 2D zeolite
- Crystallization
- Isomerization
- Selectivity