Colloid Journal

, Volume 67, Issue 4, pp 491–496 | Cite as

Structure and Adsorption Properties of Nanocrystalline Silicon

  • I. A. Tutorskii
  • A. I. Belogorokhov
  • A. A. Ishchenko
  • P. A. Storozhenko


The structure of the particles of nanocrystalline silicon synthesized in argon plasma with added oxygen is studied. An amorphous shell composed of silicon oxide is formed on the surface of silicon nanoparticles. The particles form clusters with a fractal structure. The adsorption of nitrogen on a powder of nanocrystalline silicon at 77 K is studied, and adsorption isotherms obtained for nanocrystalline silicon and nonporous silica adsorbents with identical specific surface areas are compared. The values of surface fractal dimension of powdered nanocrystalline silicon are calculated using the Frenkel-Halsey-Hill equation for multilayer adsorption under the dominant contribution of van der Waals or capillary forces. It is shown that surface fractal dimension is a structure-sensitive parameter characterizing both the morphology of clusters and the structure (roughness) of the surface of particles and their aggregates.


Silicon Argon Specific Surface Adsorption Isotherm Capillary Force 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • I. A. Tutorskii
    • 1
  • A. I. Belogorokhov
    • 2
  • A. A. Ishchenko
    • 1
  • P. A. Storozhenko
    • 3
  1. 1.Moscow State Academy of Fine Chemical TechnologyMoscowRussia
  2. 2.TNTs RF GiredmetMoscowRussia
  3. 3.GNTs RF FGUP State Research Institute of Chemistry and Technology of Organoelement CompoundsMoscowRussia

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