Propane Carbonylation on Sulfated Zirconia Catalyst as Studied by 13C MAS NMR and FTIR Spectroscopy Full article
Journal |
Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694 |
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Output data | Year: 2004, Volume: 223, Number: 2, Pages: 290-295 Pages count : 6 DOI: 10.1016/j.jcat.2004.01.034 | ||||
Tags | Carbon monoxide, Carbonylation, IR spectroscopy, NMR spectroscopy, Propane, Sulfated zirconia | ||||
Authors |
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Affiliations |
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Funding (1)
1 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | YSF 2001/ 2-75 |
Abstract:
Using in situ 13C MAS NMR, it has been demonstrated that propane is carbonylated with carbon monoxide to produce isobutyraldehyde and isobutyric acid at 100–150 °C on sulfated zirconia. Isobutyraldehyde represents the intermediate reaction product, which is almost completely converted into the acid at 150 °C. The selective formation of isobutyraldehyde at low temperatures on SZ indicates that principally the secondary CH bond of propane is activated, rather than its CC bond. This pathway of the alkane activation can be realized either on Lewis acid sites of SZ or by direct formylation by the formyl cation formed as equilibrated species from the formate. Infrared spectroscopy provides evidence that the sulfate groups of SZ are responsible for the aldehyde oxidation. The formation of surface dithionate species as a result of sulfur reduction is suggested. These dithionate species are readily reconverted into sulfate groups by an oxidizing treatment in an O2 atmosphere.
Cite:
Luzgin M.V.
, Thomas K.
, van Gestel J.
, Gilson J-P.
, Stepanov A.G.
Propane Carbonylation on Sulfated Zirconia Catalyst as Studied by 13C MAS NMR and FTIR Spectroscopy
Journal of Catalysis. 2004. V.223. N2. P.290-295. DOI: 10.1016/j.jcat.2004.01.034 WOS Scopus РИНЦ
Propane Carbonylation on Sulfated Zirconia Catalyst as Studied by 13C MAS NMR and FTIR Spectroscopy
Journal of Catalysis. 2004. V.223. N2. P.290-295. DOI: 10.1016/j.jcat.2004.01.034 WOS Scopus РИНЦ
Dates:
Submitted: | Aug 27, 2003 |
Accepted: | Jan 26, 2004 |
Published online: | Mar 18, 2004 |
Published print: | Apr 25, 2004 |
Identifiers:
Web of science | WOS:000220754300006 |
Scopus | 2-s2.0-1842579024 |
Elibrary | 13459222 |
Chemical Abstracts | 2004:277550 |
Chemical Abstracts (print) | 141:23159 |
OpenAlex | W2094496386 |