Stopping the growth of particles to silica-supported mono-nuclear Ru hydride surface species by tuning silica with surface silanes

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Tuning silica by replacing surface silanols with silanes allows chemical grafting of Ru(COD)(COT) through a covalent Ru-Si bond, as evidenced by elemental analysis, IR spectroscopy and EXAFS. Treatment of these surface species under H2 at 300 oC yields a mononuclear Ru hydride species, without any sintering of the metal according to TEM and EXAFS analyses. This supported system displays catalytic properties different from those of supported Ru particles (2 nm), selectively hydrogenating olefins over aromatics.

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Berthoud, Romain; Fenet, Bernard; Lukens, Wayne; Pelzer, Katrin; Basset, Jean-Marie; Candy, Jean-Pierre et al. July 11, 2007.

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Tuning silica by replacing surface silanols with silanes allows chemical grafting of Ru(COD)(COT) through a covalent Ru-Si bond, as evidenced by elemental analysis, IR spectroscopy and EXAFS. Treatment of these surface species under H2 at 300 oC yields a mononuclear Ru hydride species, without any sintering of the metal according to TEM and EXAFS analyses. This supported system displays catalytic properties different from those of supported Ru particles (2 nm), selectively hydrogenating olefins over aromatics.

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  • Journal Name: Chemistry- A European Journal; Journal Volume: 14; Journal Issue: 12

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  • Report No.: LBNL-1603E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 949766
  • Archival Resource Key: ark:/67531/metadc933241

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  • July 11, 2007

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  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 18, 2016, 3:59 p.m.

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Berthoud, Romain; Fenet, Bernard; Lukens, Wayne; Pelzer, Katrin; Basset, Jean-Marie; Candy, Jean-Pierre et al. Stopping the growth of particles to silica-supported mono-nuclear Ru hydride surface species by tuning silica with surface silanes, article, July 11, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc933241/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.