Tuning the Mechanism of H/D Exchange for Isobutane on H‐BEA by Loading Zn Species in Zeolite
Тип публикации: Journal Article
Дата публикации: 2022-10-31
SCImago Q1
WOS Q2
БС1
SJR: 0.803
CiteScore: 5.8
Impact factor: 3.6
ISSN: 09476539, 15213765
PubMed ID:
36310393
General Chemistry
Catalysis
Organic Chemistry
Краткое описание
Kinetics of H/D hydrogen exchange between deuterated isobutane- d 10 and Brønsted acid sites (BAS) of three zeolite samples (H-BEA, ZnO/H-BEA, Zn 2+ /H-BEA) were monitored with 1 H MAS NMR in situ at 343-468 K. The regioselective H/D exchange in the methyl groups detected on H-BEA can be rationalized in terms of the mechanism of indirect exchange, which involves protonation of the intermediate olefin and further hydride abstraction from the other alkane molecule by the formed carbenium ion. Loading of Zn species in zeolite results in decrease of the rate and increase of the activation energy of the exchange. The loaded Zn species provide the tuning effect on the reaction occurrence, changing the mechanism from the indirect one to the mechanism of the direct exchange.
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ARZUMANOV S. et al. Tuning the Mechanism of H/D Exchange for Isobutane on H‐BEA by Loading Zn Species in Zeolite // Chemistry - A European Journal. 2022. Vol. 29. No. 5.
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ARZUMANOV S., Gabrienko A. A., Freude D., Haase J., Stepanov A. Tuning the Mechanism of H/D Exchange for Isobutane on H‐BEA by Loading Zn Species in Zeolite // Chemistry - A European Journal. 2022. Vol. 29. No. 5.
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TY - JOUR
DO - 10.1002/chem.202202962
UR - https://doi.org/10.1002/chem.202202962
TI - Tuning the Mechanism of H/D Exchange for Isobutane on H‐BEA by Loading Zn Species in Zeolite
T2 - Chemistry - A European Journal
AU - ARZUMANOV, S
AU - Gabrienko, A A
AU - Freude, D.
AU - Haase, Jürgen
AU - Stepanov, Alexander
PY - 2022
DA - 2022/10/31
PB - Wiley
IS - 5
VL - 29
PMID - 36310393
SN - 0947-6539
SN - 1521-3765
ER -
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@article{2022_ARZUMANOV,
author = {S ARZUMANOV and A A Gabrienko and D. Freude and Jürgen Haase and Alexander Stepanov},
title = {Tuning the Mechanism of H/D Exchange for Isobutane on H‐BEA by Loading Zn Species in Zeolite},
journal = {Chemistry - A European Journal},
year = {2022},
volume = {29},
publisher = {Wiley},
month = {oct},
url = {https://doi.org/10.1002/chem.202202962},
number = {5},
doi = {10.1002/chem.202202962}
}
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