4.8 Article

Tin-decorated ruthenium nanoparticles: a way to tune selectivity in hydrogenation reaction

Journal

NANOSCALE
Volume 6, Issue 16, Pages 9806-9816

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nr00791c

Keywords

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Funding

  1. CNRS
  2. ANR [SIDERUS BLAN-08-0010-03]
  3. ANR-DFG (MOCA-NANO) [ANR-11-INTB-1011, DFG-911/19-1]
  4. Interreg Sudoe (TRAIN2 project)
  5. European Union for ERC Advanced Grant [NANOSONWINGS 2009-246763]
  6. CNRS-MPG cooperation
  7. HPCs CALcul en MIdi-Pyrenees (CALMIP-Hyperion) [P0611]
  8. Grand Equipement National de Calcul Intensif (GENCI-TGCC-Curie) [6211]
  9. Agence Nationale de la Recherche (ANR) [ANR-11-INTB-1011] Funding Source: Agence Nationale de la Recherche (ANR)

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Two series of ruthenium nanoparticles stabilized either by a polymer (polyvinylpyrrolidone; Ru/PVP) or a ligand (bisdiphenylphosphinobutane; Ru/dppb) were reacted with tributyltin hydride [(n-C4H9)(3)SnH] leading to tin-decorated ruthenium nanoparticles, Ru/PVP/Sn and Ru/dppb/Sn. The Sn/Ru molar ratio was varied in order to study the influence of the surface tin content on the properties of these new nanoparticles, by comparison with Ru/PVP and Ru/dppb. Besides HRTEM and WAXS analyses, spectroscopic techniques (IR, NMR and Mossbauer) combined with theoretical calculations and a simple catalytic test (styrene hydrogenation) allowed us to evidence the formation of mu(3)-bridging SnR groups on the ruthenium surface as well as to rationalize their influence on surface chemistry and catalytic activity.

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