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CO hydrogenation to C-oxygenates over Rh-Mn-Li/SiO catalyst: Effects of support pretreatment with nC-C alcohols

Catalysis Letters, ISSN: 1011-372X, Vol: 121, Issue: 3-4, Page: 241-246
2008
  • 51
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    51
    • Citation Indexes
      51
  • Captures
    14

Article Description

The effects of support pretreatment with nC-C alcohols on the performance of Rh-Mn-Li/SiO catalyst in the synthesis of C-oxygenates from syngas have been investigated by CO hydrogenation reaction, transmission electron microscopy (TEM), pulse adsorption of CO and H, and Fourier Transform infrared (FT-IR) spectroscopy. The catalysts prepared from the pretreated silica supports exhibited higher space time yields of C-oxygenates (STY) and selectivities towards C-oxygenates (S) than that prepared from the untreated silica support. The enhancement in the hydrophobicity of the pretreated silica supports would be favorable for increasing Rh dispersion and ratio of Rh/Rh sites, therefore increasing the number of active sites, especially the active sites for CO insertion. Such variations are responsible for the improvements in the catalytic performance of the Rh-Mn-Li/SiO catalyst. © 2007 Springer Science+Business Media, LLC.

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