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      FTIR characterization of Ru/SiO2 catalyst for ammonia synthesis

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      Author(s)
      Sayan, Ş.
      Kantcheva, M.
      Süzer, Şefik
      Uner, D. O.
      Date
      1999-05-04
      Source Title
      Journal of Molecular Structure
      Print ISSN
      0022-2860
      Publisher
      Elsevier
      Volume
      480-481
      Pages
      241 - 245
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Carbon monoxide adsorption on a Ru/SiO2 catalyst was followed by IR spectroscopy to investigate the active sites. Using this catalyst, ammonia synthesis was achieved at 3508C in an N2/H2 gas mixture (N2/H2 < 3 : 1) for different reaction times. In addition to NH3 other NHx (x 1,2) species were also observed. CO adsorption after NH3 production was also performed to investigate the change in nature of the active sites. Based on the experimental evidence participation of Ru0 sites in ammonia synthesis was confirmed and a partial oxidation of the reduced Ru sites during the synthesis was observed. q 1999 Elsevier Science B.V. All rights reserved.
      Keywords
      Ru/SiO2 catalyst
      Ammonia synthesis
      FTIR of adsorbed CO
      Permalink
      http://hdl.handle.net/11693/10963
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/S0022-2860(98)00812-6
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      • Department of Chemistry 640
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