H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR | Sciact - CRIS-system of Boreskov Institute of Catalysis

H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR Full article

Journal

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Output data

Year: 2025, Volume: 398, Article number : 113824, Pages count : 10 DOI: 10.1016/j.micromeso.2025.113824

Authors

Arzumanov Sergei S. ¹ , Gabrienko Anton A. ¹ , Toktarev Alexander V. ¹ , Freude Dieter ² , Stepanov Alexander G. ¹

Affiliations

1	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk, 630090, Russia
2	Leipzig University, Faculty of Physics and Earth System Sciences, Linnéstr. 5, 04103, Leipzig, Germany

Funding (2)

1	Russian Science Foundation	22-13-00029
2	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0032

H/D hydrogen exchange between ethane-d6 and Brønsted acid sites (BAS) of In-modified BEA zeolites (In+/H-BEA and InO+/H-BEA) in comparison with the exchange on pure H-form BEA zeolite (H-BEA) has been studied by 1H MAS NMR spectroscopy at 453−553 K. Kinetic measurements show that three types of surface OH groups, the bridged SiOHAl, extra-framework AlOH, and strongly acidic SiOH, are involved in the exchange with ethane-d6 on H-BEA zeolite with similar reaction rates. In case of the presence of oxo-cationic InO+ species in zeolite pores, the rate of H/D exchange increases significantly and the activation energy of the exchange decreases as compared to the rate and the activation energy on H-BEA and In+/H-BEA zeolites. The possible reaction mechanisms of the exchange for In-modified zeolites are discussed based on the analysis of the kinetic parameters.

Arzumanov S.S. , Gabrienko A.A. , Toktarev A.V. , Freude D. , Stepanov A.G.
H/D Exchange of Ethane on In-modified BEA Zeolite Investigated by 1H MAS NMR
Microporous and Mesoporous Materials. 2025. V.398. 113824 :1-10. DOI: 10.1016/j.micromeso.2025.113824 Scopus OpenAlex

Submitted:	Jun 26, 2025
Accepted:	Aug 21, 2025
Published online:	Aug 21, 2025
Published print:	Dec 1, 2025

Scopus:	2-s2.0-105013840748
OpenAlex:	W4413451966

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