• DocumentCode
    996760
  • Title

    Magnetic and Mössbauer characterization of dispersed iron catalysts on undoped and boron doped carbons

  • Author

    Rao, Akhila ; Mulay, L.N.

  • Author_Institution
    The Pennsylvania State University, University Park, PA
  • Volume
    19
  • Issue
    5
  • fYear
    1983
  • fDate
    9/1/1983 12:00:00 AM
  • Firstpage
    1998
  • Lastpage
    2000
  • Abstract
    Graphitized carbon black Monarch 700 doped with boron (1%) at two heat treatment temperatures (2073, 2350K) have been characterized by magnetic susceptibility measurements. These showed a transition from Landau diamagnetism to the Langevin type diamagnetism with progressive boron doping. Band parameters such as the degeneracy temperature, effective mass, etc. were derived. Increasing boron doping lowered the Fermi level. Kinetic results for CO hydrogenation for Fe dispersions on the above carbon supports showed a significant formation of CH4for the boron doped samples, suggesting a metal support interaction.
  • Keywords
    Carbon materials/devices; Iron materials/devices; Magnetic materials/devices; Mossbauer spectroscopy; Boron; Doping; Electrons; Heat treatment; Inorganic materials; Iron; Kinetic theory; Magnetic separation; Magnetic susceptibility; Temperature;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1983.1062611
  • Filename
    1062611
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=996760