Selective Hydrogenation of 2-Methyl-3-butyn-2-ol in Microcapillary Reactor on Supported Intermetallic PdZn Catalyst, Effect of Support Doping on Stability and Kinetic Parameters Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2022, Volume: 12, Number: 12, Article number : 1660, Pages count : 20 DOI: 10.3390/catal12121660 | ||||
| Tags | multicrystalline coatings; titania; PdZn nanoparticles; selective hydrogenation; 2-methyl-3-butyn-2-ol; capillary microreactor | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0004 |
Abstract:
The development of active, selective, and stable multicrystalline catalytic coatings on the inner surface of microcapillary reactors addresses environmental problems of fine organic synthesis, in particular by reducing the large quantities of reagents and byproducts. Thin-film nanosized bimetallic catalysts based on mesoporous pure titania and doped with zirconia, ceria, and zinc oxide, for use in microreactors, were developed, and the regularities of their formation were studied. The efficiency of PdZn/TixM1−xO2±y (M = Ce, Zr, Zn) in the hydrogenation of 2-methyl-3-butyn 2-ol was studied with an emphasis on the stability of the catalyst during the reaction. The catalytic parameters depend on the adsorption properties and activity of PdZn and Pd(0) active centers. Under reaction conditions, resistance to the decomposition of PdZn is a factor that affects the stability of the catalyst. The zinc-doped coating proved to be the most selective and stable in the reaction of selective hydrogenation of acetylenic alcohols in a microcapillary reactor. This coating retained a high selectivity of 98.2% during long-term testing up to 168 h. Modification of the morphology and electronic structure of the active component, by doping titania with Ce and Zr, is accompanied by a decrease in stability.
Cite:
Okhlopkova L.
, Prosvirin I.
, Kerzhentsev M.
, Ismagilov Z.
Selective Hydrogenation of 2-Methyl-3-butyn-2-ol in Microcapillary Reactor on Supported Intermetallic PdZn Catalyst, Effect of Support Doping on Stability and Kinetic Parameters
Catalysts. 2022. V.12. N12. 1660 :1-20. DOI: 10.3390/catal12121660 WOS Scopus РИНЦ AN OpenAlex
Selective Hydrogenation of 2-Methyl-3-butyn-2-ol in Microcapillary Reactor on Supported Intermetallic PdZn Catalyst, Effect of Support Doping on Stability and Kinetic Parameters
Catalysts. 2022. V.12. N12. 1660 :1-20. DOI: 10.3390/catal12121660 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Oct 17, 2022 |
| Accepted: | Dec 14, 2022 |
| Published print: | Dec 17, 2022 |
| Published online: | Dec 17, 2022 |
Identifiers:
| Web of science: | WOS:000900563400001 |
| Scopus: | 2-s2.0-85144867036 |
| Elibrary: | 53734149 |
| Chemical Abstracts: | 2023:44259 |
| OpenAlex: | W4313430771 |