期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 51, 页码 26702-26709出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202110107
关键词
Bronsted acid sites; faujasite; sodalite; supercage; zeolite
资金
- Industrial Chair ANR-TOTAL NanoClean Energy [ANR-17-CHIN-0005-01]
- Bulgarian Science Fund [KP-06-DO02/2]
- Bulgarian Ministry of Education and Science [D01-76/30.03.2021]
- FEDER [18P01675]
Zeolite Y and its derivative USY are widely used heterogeneous catalysts in oil refining, petrochemistry, and chemical manufacturing. After almost 60 years of research, USY's exceptional catalytic performance is attributed to a previously unreported proton transfer involving inaccessible active sites.
Zeolite Y and its ultra-stabilized hierarchical derivative (USY) are the most widely used zeolite-based heterogeneous catalysts in oil refining, petrochemisty, and other chemicals manufacturing. After almost 60 years of academic and industrial research, their resilience is unique as no other catalyst displaced them from key processes such as FCC and hydrocracking. The present study highlights the key difference leading to the exceptional catalytic performance of USY versus the parent zeolite Y in a multi-technique study combining advanced spectroscopies (IR and solid-state NMR) and molecular modeling. The results highlight a hitherto unreported proton transfer involving inaccessible active sites in sodalite cages that contributes to the exceptional catalytic performance of USY.
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