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Structural and Energetic Characteristics of Silicas Modified by Organosilicon Compounds

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Abstract

Structural and adsorptive characteristics of unmodified and modified silica gels Davisil 633 and 643, and fumed silica Cab—O—Sil HS-5, were analyzed on the basis of nitrogen adsorption isotherms. The properties of aqueous suspensions of the initial and modified fumed silicas were also studied. Deviation of the pore shape from simple models, cylindrical pores for silica gels and gaps between spherical particles for fumed silica, increases for modified silicas.

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Authors and Affiliations

  1. Institute of Surface Chemistry, 17 General Naumov Street, Kiev, 03164, Ukraine

    V. M. Gun’ko & V. I. Zarko

  2. Department of Chemistry, Eastern Illinois University, Charleston, IL, 61920, USA

    D. J. Sheeran

  3. Millenium Petrochemicals, Baltimore, MD, USA

    S. M. Augustine

  4. Department of Chemistry, Eastern Illinois University, Charleston, IL, 61920, USA

    J. P. Blitz

Authors
  1. V. M. Gun’ko
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  2. V. I. Zarko
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  3. D. J. Sheeran
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  4. S. M. Augustine
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  5. J. P. Blitz
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Correspondence to J. P. Blitz.

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Gun’ko, V.M., Zarko, V.I., Sheeran, D.J. et al. Structural and Energetic Characteristics of Silicas Modified by Organosilicon Compounds. Adsorption 11 (Suppl 1), 703–708 (2005). https://doi.org/10.1007/s10450-005-6010-8

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  • DOI: https://doi.org/10.1007/s10450-005-6010-8

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