Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite | Sciact - CRIS-system of Boreskov Institute of Catalysis

Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite Full article

Journal

Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X

Output data

Year: 2007, Volume: 114, Number: 1-2, Pages: 85-90 Pages count : 6 DOI: 10.1007/s10562-007-9044-6

Tags

H/D exchange, In situ 1H MAS NMR spectroscopy, Kinetics, Mechanism, Propane, Zn/H-MFI zeolite

Authors

Stepanov A.G. ¹ , Arzumanov S.S. ¹ , Parmon V.N. ¹ , Kolyagin Y.G. ² , Ivanova I.I. ² , Freude D. ³

Affiliations

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Prospekt Akademika Lavrentieva 5, Russian Federation
2	Department of Chemistry, Moscow State University, Moscow 119992, Lenin Hills 1, Russian Federation
3	Abteilung Grenzflächenphysik, Universität Leipzig, Leipzig 04103, Linnéstraße 5, Germany

Funding (4)

1	German Research Foundation	FR 902/15
2	Russian Foundation for Basic Research	04-03-32372
3	International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union	03-51-5286
4	Russian Foundation for Basic Research	06-03-32914

The hydrogen exchange for propane-d8 adsorbed on zeolite Zn/H-MFI has been studied by1H MAS NMR spectroscopy in situ within the temperature range of 420–490 K. Kinetic measurements of the H/D exchange between the acidic hydroxyl groups of the zeolite and the adsorbed deuterated propane molecules show that only methyl groups of the alkane are involved in the exchange. Two mechanisms are proposed to rationalize the regioselectivity of the exchange: (i) propane dehydrogenation on Zn-sites followed by protonation of propene by acidic OH groups in accordance to the Markovnikov’s rule and abstraction of deuteride ion from another propane molecule; (ii) the reversible heterolytic dissociative adsorption of propane to form Zn-propyl species and acidic OH groups.

Stepanov A.G. , Arzumanov S.S. , Parmon V.N. , Kolyagin Y.G. , Ivanova I.I. , Freude D.
Regioselective H/D Exchange of Propane on Zn/H-MFI Zeolite
Catalysis Letters. 2007. V.114. N1-2. P.85-90. DOI: 10.1007/s10562-007-9044-6 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jan 15, 2007
Accepted:	Feb 10, 2007
Published print:	Mar 1, 2007
Published online:	Mar 7, 2007

Web of science:	WOS:000246082900015
Scopus:	2-s2.0-34247561719
Elibrary:	13546841
Chemical Abstracts:	2007:465005
Chemical Abstracts (print):	147:52561
OpenAlex:	W2062846691

DB	Citing
Web of science	36
Scopus	37
Elibrary	34
OpenAlex	37