Kinetics study of the Ru/C-catalysed hydrogenolysis of polyols – insight into the interactions with the metal surface
The aqueous Ru/C-catalysed hydrogenolysis of xylitol and sorbitol was studied in a temperature range between 393–443 K under 6 MPa H 2 . For the three main reactions, stereoisomerisation, decarbonylation and deoxygenation, kinetic models were formulated and fitted to the experimental data. The obtai...
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| Veröffentlicht in: | Catalysis science & technology 2017, Vol.7 (1), p.56-63 |
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| creator | Hausoul, Peter J. C. Beine, Anna K. Neghadar, Leila Palkovits, Regina |
| description | The aqueous Ru/C-catalysed hydrogenolysis of xylitol and sorbitol was studied in a temperature range between 393–443 K under 6 MPa H
2
. For the three main reactions, stereoisomerisation, decarbonylation and deoxygenation, kinetic models were formulated and fitted to the experimental data. The obtained rate constants were used to determine apparent activation enthalpies
via
the Eyring method. The data reveals a clear dependence of the type and position of the reacting hydroxyl group as well as the length of the polyol on the activation energies. It is proposed that these differences are the result of increased stabilisation due to polydentate interactions with the metal surface. |
| doi_str_mv | 10.1039/C6CY02104B |
| format | Article |
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2
. For the three main reactions, stereoisomerisation, decarbonylation and deoxygenation, kinetic models were formulated and fitted to the experimental data. The obtained rate constants were used to determine apparent activation enthalpies
via
the Eyring method. The data reveals a clear dependence of the type and position of the reacting hydroxyl group as well as the length of the polyol on the activation energies. It is proposed that these differences are the result of increased stabilisation due to polydentate interactions with the metal surface.</description><identifier>ISSN: 2044-4753</identifier><identifier>EISSN: 2044-4761</identifier><identifier>DOI: 10.1039/C6CY02104B</identifier><language>eng</language><subject>Activation ; Hydrogenolysis ; Metal surfaces ; Polyols ; Rate constants ; Reaction kinetics ; Sorbitol ; Xylitol</subject><ispartof>Catalysis science & technology, 2017, Vol.7 (1), p.56-63</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c301t-1797ef95774d1bc9249c2fbddea921fb4b795be549f397f2cbdb364d7f3c94c03</citedby><cites>FETCH-LOGICAL-c301t-1797ef95774d1bc9249c2fbddea921fb4b795be549f397f2cbdb364d7f3c94c03</cites><orcidid>0000-0002-4970-2957</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Hausoul, Peter J. C.</creatorcontrib><creatorcontrib>Beine, Anna K.</creatorcontrib><creatorcontrib>Neghadar, Leila</creatorcontrib><creatorcontrib>Palkovits, Regina</creatorcontrib><title>Kinetics study of the Ru/C-catalysed hydrogenolysis of polyols – insight into the interactions with the metal surface</title><title>Catalysis science & technology</title><description>The aqueous Ru/C-catalysed hydrogenolysis of xylitol and sorbitol was studied in a temperature range between 393–443 K under 6 MPa H
2
. For the three main reactions, stereoisomerisation, decarbonylation and deoxygenation, kinetic models were formulated and fitted to the experimental data. The obtained rate constants were used to determine apparent activation enthalpies
via
the Eyring method. The data reveals a clear dependence of the type and position of the reacting hydroxyl group as well as the length of the polyol on the activation energies. It is proposed that these differences are the result of increased stabilisation due to polydentate interactions with the metal surface.</description><subject>Activation</subject><subject>Hydrogenolysis</subject><subject>Metal surfaces</subject><subject>Polyols</subject><subject>Rate constants</subject><subject>Reaction kinetics</subject><subject>Sorbitol</subject><subject>Xylitol</subject><issn>2044-4753</issn><issn>2044-4761</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNpFkE1OwzAQhSMEElXphhN4iZBC7diJ6yVE_AkkJAQLVpHjn8YojYvHUZUdd-CGnIS0RTCb983ozVu8JDkl-IJgKuZlUb7hjGB2dZBMMsxYynhBDv84p8fJDOAdj8MEwYtskmweXGeiU4Ag9npA3qLYGPTcz8tUySjbAYxGzaCDX5rOj6uDrWk9om8BfX9-IdeBWzZx1Oh33yOYIFV0vgO0cbHZXVdmjEPQByuVOUmOrGzBzH51mrzeXL-Ud-nj0-19efmYKopJTAkX3FiRc840qZXImFCZrbU2UmTE1qzmIq9NzoSlgttM1bqmBdPcUiWYwnSanO1z18F_9AZitXKgTNvKzvgeKrJYYEx4gbfW871VBQ8QjK3Wwa1kGCqCq23B1X_B9AdENHBn</recordid><startdate>2017</startdate><enddate>2017</enddate><creator>Hausoul, Peter J. C.</creator><creator>Beine, Anna K.</creator><creator>Neghadar, Leila</creator><creator>Palkovits, Regina</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-4970-2957</orcidid></search><sort><creationdate>2017</creationdate><title>Kinetics study of the Ru/C-catalysed hydrogenolysis of polyols – insight into the interactions with the metal surface</title><author>Hausoul, Peter J. C. ; Beine, Anna K. ; Neghadar, Leila ; Palkovits, Regina</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c301t-1797ef95774d1bc9249c2fbddea921fb4b795be549f397f2cbdb364d7f3c94c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Activation</topic><topic>Hydrogenolysis</topic><topic>Metal surfaces</topic><topic>Polyols</topic><topic>Rate constants</topic><topic>Reaction kinetics</topic><topic>Sorbitol</topic><topic>Xylitol</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hausoul, Peter J. C.</creatorcontrib><creatorcontrib>Beine, Anna K.</creatorcontrib><creatorcontrib>Neghadar, Leila</creatorcontrib><creatorcontrib>Palkovits, Regina</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Catalysis science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hausoul, Peter J. C.</au><au>Beine, Anna K.</au><au>Neghadar, Leila</au><au>Palkovits, Regina</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Kinetics study of the Ru/C-catalysed hydrogenolysis of polyols – insight into the interactions with the metal surface</atitle><jtitle>Catalysis science & technology</jtitle><date>2017</date><risdate>2017</risdate><volume>7</volume><issue>1</issue><spage>56</spage><epage>63</epage><pages>56-63</pages><issn>2044-4753</issn><eissn>2044-4761</eissn><abstract>The aqueous Ru/C-catalysed hydrogenolysis of xylitol and sorbitol was studied in a temperature range between 393–443 K under 6 MPa H
2
. For the three main reactions, stereoisomerisation, decarbonylation and deoxygenation, kinetic models were formulated and fitted to the experimental data. The obtained rate constants were used to determine apparent activation enthalpies
via
the Eyring method. The data reveals a clear dependence of the type and position of the reacting hydroxyl group as well as the length of the polyol on the activation energies. It is proposed that these differences are the result of increased stabilisation due to polydentate interactions with the metal surface.</abstract><doi>10.1039/C6CY02104B</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-4970-2957</orcidid></addata></record> |
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| ispartof | Catalysis science & technology, 2017, Vol.7 (1), p.56-63 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Activation Hydrogenolysis Metal surfaces Polyols Rate constants Reaction kinetics Sorbitol Xylitol |
| title | Kinetics study of the Ru/C-catalysed hydrogenolysis of polyols – insight into the interactions with the metal surface |
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