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Narrowly dispersed silica supported osmium nanoparticles prepared by an organometallic approach: H and CO adsorption stoichiometry and hydrogenolysis catalytic activity

Dalton Transactions, ISSN: 1477-9226, Vol: 42, Issue: 35, Page: 12620-12625
2013
  • 16
    Citations
  • 0
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  • 20
    Captures
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  • 18
    Social Media
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  • Citations
    16
  • Captures
    20
  • Social Media
    18
    • Shares, Likes & Comments
      18
      • Facebook
        18

Article Description

Osmium(cyclooctadiene)(cyclooctatetraene) is used as a molecular precursor to prepare small and narrowly distributed silica supported nanoparticles upon a mild treatment under H (1.1 ± 0.3 nm, ca. 90 atoms). Static volumetric chemisorption combined with HAADF-STEM shows that Os nanoparticles adsorb 1.7 ± 0.1 H and 1.4 ± 0.1 CO per surface atom. These particles present high activity in the hydrogenolysis of alkanes via a dimetallacyclopentane mechanism. © 2013 The Royal Society of Chemistry.

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