| Naslov: | Synthesis of helional by hydrodechlorination reaction in the presence of mono- and bimetallic catalysts supported on alumina |
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| Avtorji: | ID Piccolo, Oreste (Avtor)
ID Arčon, Iztok (Avtor)
ID Gangadhar, Das (Avtor)
ID Aquilanti, Giuliana (Avtor)
ID Prai, Andrea (Avtor)
ID Paganelli, Stefano (Avtor)
ID Facchin, Manuela (Avtor)
ID Beghetto, Valentina (Avtor) |
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| Datoteke: |  https://www.mdpi.com/2073-4344/14/4/255
 catalysts-14-00255.pdf (446,63 KB)
MD5: 1401BA663CBA16D93E5F926E1DDB3CB9
 catalysts-14-00255-s001.zip (597,77 KB)
MD5: 23CEFF851C861E38B7831A14E6D2A573
To gradivo ima še več datotek. Celoten seznam je na voljo
spodaj. |
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Neznano |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | UNG - Univerza v Novi Gorici
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| Opis: | Hydrodechlorination reaction of 3-(benzo-1,3-dioxol-5-yl)-3-chloro-2-methylacrylaldehyde in the presence of different low metal content heterogeneous mono- or bimetallic catalysts was tested for the synthesis of the fragrance Helional® (3-[3,4-methylendioxyphenyl]-2-methyl-propionaldehyde). In particular, mono Pd/Al2O3, Rh/Al2O3 or bimetallic Pd-Cu/Al2O3, Rh-Cu/Al2O3 catalysts were tested in different reaction conditions from which it emerged that mono-Rh/Al2O3 was the best performing catalyst, allowing achievement of 100% substrate conversion and 99% selectivity towards Helional® in 24 h at 80 °C, p(H2) 1.0 MPa in the presence of a base. To establish correlations between atomic structure and catalytic activity, catalysts were characterized by Cu, Rh and Pd K-edge XANES, EXAFS analysis. These characterizations allowed verification that the formation of Pd-Cu alloys and the presence of Cu oxide/hydroxide species on the surface of the Al2O3 support are responsible for the very low catalytic efficiency of bimetallic species tested. |
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| Ključne besede: | selective hydrodechlorination, heterogeneous catalysis, XANES analysis, EXAFS analysis |
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| Datum objave: | 01.04.2024 |
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| Leto izida: | 2024 |
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| Št. strani: | str. 1-11 |
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| Številčenje: | Vol. 14, issue 4, [article no.] 255 |
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| PID: | 20.500.12556/RUNG-8999  |
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| COBISS.SI-ID: | 193915395 |
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| UDK: | 54 |
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| ISSN pri članku: | 2073-4344 |
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| eISSN: | 2073-4344 |
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| DOI: | 10.3390/catal14040255 |
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| NUK URN: | URN:SI:UNG:REP:3BJO3O2F |
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| Datum objave v RUNG: | 25.04.2024 |
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| Število ogledov: | 1648 |
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| Število prenosov: | 9 |
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| Metapodatki: |    |
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