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Title: Enhanced Selectivity and Stability of Finned Ferrierite Catalysts in Butene Isomerization

Journal Article · · Angewandte Chemie (International Edition)

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.

Research Organization:
Univ. of Delaware, Newark, DE (United States); Univ. of Houston, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Welch Foundation; Swedish Research Council (SRC); Knut and Alice Wallenberg Foundation; National Natural Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
SC0001004; SC0014468; E-1794; 2017-0432; 2012.0112; National Natural Science Foundation of China
OSTI ID:
1976271
Alternate ID(s):
OSTI ID: 1837726
Journal Information:
Angewandte Chemie (International Edition), Vol. 61, Issue 8; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (7)