The Influence of MSI (Metal-Support Interactions) and the Solvent in Liquid-Phase Reactions

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Results were repeatedly obtained that were consistent with a hypothesis proposed at the beginning of this program, i.e., due to Metal-Support Interactions (MSI), unique active sites can be created in the metal-support interfacial region to enhance activity and improve selectivity in certain types of reactions, especially those involving the hydrogenation of carbonyl and unsaturated C=C bonds. Higher turnover frequencies (TOF-molecule/s/site) and increased selectivity for C=O bond versus C=C bond hydrogenation was established in the hydrogenation reactions of: acetone, crotonaldehyde, acetophenone, phenylethanol, acetylcyclohexane, benzaldehyde, benzyl alcohol, phenylacetaldehyde and citral over Pt/TiO{sub 2} MSI catalysts. Higher rates of hydrogenation benzene, toluene and ... continued below

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Vannice, M. A. May 30, 2003.

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Description

Results were repeatedly obtained that were consistent with a hypothesis proposed at the beginning of this program, i.e., due to Metal-Support Interactions (MSI), unique active sites can be created in the metal-support interfacial region to enhance activity and improve selectivity in certain types of reactions, especially those involving the hydrogenation of carbonyl and unsaturated C=C bonds. Higher turnover frequencies (TOF-molecule/s/site) and increased selectivity for C=O bond versus C=C bond hydrogenation was established in the hydrogenation reactions of: acetone, crotonaldehyde, acetophenone, phenylethanol, acetylcyclohexane, benzaldehyde, benzyl alcohol, phenylacetaldehyde and citral over Pt/TiO{sub 2} MSI catalysts. Higher rates of hydrogenation benzene, toluene and xylene could be obtained over certain supported Pt and Pd catalysts. Au/TiO{sub 2} catalysts were developed that were active for CO hydrogenation at subambient temperatures. The influence of support and metal crystallite size were established for the adsorption of H{sub 2}, CO and O{sub 2} on families of Pt and Pd catalysts.

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OSTI as DE00824023

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  • Other Information: PBD: 30 May 2003

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  • Report No.: None
  • Grant Number: FG02-84ER13276
  • DOI: 10.2172/824023 | External Link
  • Office of Scientific & Technical Information Report Number: 824023
  • Archival Resource Key: ark:/67531/metadc782677

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  • May 30, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • Aug. 5, 2016, 3:02 p.m.

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Vannice, M. A. The Influence of MSI (Metal-Support Interactions) and the Solvent in Liquid-Phase Reactions, report, May 30, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc782677/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.