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      FTIR spectroscopic study on nickel(II)-exchanged sulfated alumina: nature of the active sites in the catalytic oligomerization of ethene

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      Author(s)
      Davydov, A. A.
      Kantcheva, M.
      Chepotko, M. L.
      Date
      2002
      Source Title
      Catalysis Letters
      Print ISSN
      1011-372X
      Publisher
      Springer
      Volume
      83
      Issue
      1-2
      Pages
      97 - 108
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      The nature of the active sites in nickel(II)-exchanged sulfated alumina in the reaction of ethene oligomerization has been studied by means of FTIR spectroscopy of adsorbed CO. It has been established that isolated nickel(I) species are the active sites in this process. These sites are formed by a reduction process, in which protonic centers are involved. The latter are due to the presence of covalently-bonded sulfate ions on the catalyst surface.
      Keywords
      Dimerization
      Ethene
      FTIR study
      Nature of active sites
      Nickel-exchanged sulfated alumina
      Adsorption
      Alumina
      Carbon monoxide
      Chemical bonds
      Dimerization
      Ethylene
      Fourier transform infrared spectroscopy
      Ions
      Nickel compounds
      Surface reactions
      Oligomerization
      Catalyst activity
      Permalink
      http://hdl.handle.net/11693/24641
      Published Version (Please cite this version)
      http://dx.doi.org/10.1023/A:1020669818242
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      • Department of Chemistry 640
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