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Glass Physics and Chemistry

, Volume 41, Issue 2, pp 187–193 | Cite as

Template synthesis and water vapor adsorption by micro- and mesoporous silica gels with high specific surface area

  • I. S. Puzyrev
  • E. P. Sobina
  • L. V. Adamova
  • M. I. Kodess
  • S. V. Medvedevskikh
Article

Abstract

Micro- and mesoporous silica gels have been synthesized in the basic medium using a mixture of distilled primary alkylamines as a structure-forming agent. The silica gels’ porosity characteristics have been investigated by the method of nitrogen low-temperature adsorption. The specific surface area of mesoporous silica gels is in the range 1392–1568 m2/g, whereas for silica gels containing micropores (aside from mesopores) this value ranges from 887 to 1259 m2/g; the pore volumes are 0.68–0.79 cm3/g and 0.81–0.97 cm3/g, respectively. The 29Si NMR spectroscopy data demonstrate high degree of cohesiveness of the mesoporous silica gel and the predominant cohesiveness type (Q 4), while the type Q 3 characterizes samples containing both pore types. Adsorption of water vapor on the latter ones starts at lower relative vapor pressure in comparison with mesoporous samples.

Keywords

mesoporous silica gels template synthesis water vapor adsorption 

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • I. S. Puzyrev
    • 1
  • E. P. Sobina
    • 2
  • L. V. Adamova
    • 3
  • M. I. Kodess
    • 1
  • S. V. Medvedevskikh
    • 2
  1. 1.Institute of Organic Synthesis, Ural BranchRussian Academy of SciencesYekaterinburgRussia
  2. 2.Ural Institute of MetrologyYekaterinburgRussia
  3. 3.Ural Federal UniversityYekaterinburgRussia

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