Abstract: In-modified zeolites possess promising catalytic properties for light alkane dehydrogenation and aromatization. However, the role of different indium species, which are present in zeolite pores after activation, remains unknown. Here, the transformation of propane on BEA zeolite containing either In+ or InO+ species in zeolite pores has been monitored with 13C MAS NMR at 298–773 K. It is inferred that In+/H-BEA zeolite with In+ sites is inactive for alkane conversion at T < 723 K. The transformation of the alkane on InO+/H-BEA zeolite occurs by two parallel routes: dehydrogenation of propane followed by the formed alkene aromatization to simple aromatic hydrocarbons and the alkane oxidation resulting in C2–C3 carboxylic acids. Propane activation by either C–H or C–C bond cleavage on InO+ sites and pathways of carboxylic acid formation from the products of the alkane dissociative adsorption are discussed.

Cite: Gabrienko A.A. , Arzumanov S.S. , Toktarev A.V. , Prosvirin I.P. , Freude D. , Haase J. , Stepanov A.G.
Propane Transformation on In-Modified Zeolite BEA
The Journal of Physical Chemistry C. 2022. V.126. N38. P.16204-16214. DOI: 10.1021/acs.jpcc.2c05888 WOS Scopus РИНЦ AN OpenAlex

Dates:

Submitted:	Aug 17, 2022
Accepted:	Sep 9, 2022
Published online:	Sep 20, 2022
Published print:	Sep 29, 2022

Identifiers:

Web of science:	WOS:000861587900001
Scopus:	2-s2.0-85138947408
Elibrary:	50300329
Chemical Abstracts:	2022:2437058
OpenAlex:	W4296685784

Citing:

DB	Citing
Web of science	8
Scopus	9
Elibrary	5
OpenAlex	6

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