Significant Influence of Zn on Activation of the C-H Bonds of Small Alkanes by Brønsted Acid Sites of Zeolite Full article
Journal |
ChemPhysChem
ISSN: 1439-4235 , E-ISSN: 1439-7641 |
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Output data | Year: 2008, Volume: 9, Number: 17, Pages: 2559-2563 Pages count : 5 DOI: 10.1002/cphc.200800569 | ||||||
Tags | Alkanes, H/D exchange, Heterogeneous catalysis, Solid-state NMR, Zeolites | ||||||
Authors |
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Affiliations |
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Funding (3)
1 | Russian Foundation for Basic Research | 07-03-00136 |
2 | German Research Foundation | FR 902/15 |
3 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 03-51-5286 |
Abstract:
Herein, we analyze earlier obtained and new data about peculiarities of the H/D hydrogen exchange of small C1–n-C4 alkanes on Zn-modified high-silica zeolites ZSM-5 and BEA in comparison with the exchange for corresponding purely acidic forms of these zeolites. This allows us to identify an evident promoting effect of Zn on the activation of CH bonds of alkanes by zeolite Brønsted sites. The effect of Zn is demonstrated by observing the regioselectivity of the H/D exchange for propane and n-butane as well as by the increase in the rate and a decrease in the apparent activation energy of the exchange for all C1–n-C4 alkanes upon modification of zeolites with Zn. The influence of Zn on alkane activation has been rationalized by dissociative adsorption of alkanes on Zn oxide species inside zeolite pores, which precedes the interaction of alkane with Brønsted acid sites.
Cite:
Stepanov A.G.
, Arzumanov S.S.
, Gabrienko A.A.
, Parmon V.N.
, Ivanova I.I.
, Freude D.
Significant Influence of Zn on Activation of the C-H Bonds of Small Alkanes by Brønsted Acid Sites of Zeolite
ChemPhysChem. 2008. V.9. N17. P.2559-2563. DOI: 10.1002/cphc.200800569 WOS Scopus РИНЦ
Significant Influence of Zn on Activation of the C-H Bonds of Small Alkanes by Brønsted Acid Sites of Zeolite
ChemPhysChem. 2008. V.9. N17. P.2559-2563. DOI: 10.1002/cphc.200800569 WOS Scopus РИНЦ
Dates:
Submitted: | Aug 28, 2008 |
Published online: | Oct 29, 2008 |
Published print: | Dec 1, 2008 |
Identifiers:
Web of science | WOS:000261721700018 |
Scopus | 2-s2.0-57349108644 |
Elibrary | 13588167 |
Chemical Abstracts | 2008:1527272 |
Chemical Abstracts (print) | 150:472143 |
PMID | 18972491 |
OpenAlex | W2139675388 |