Abstract

The mesoporous SBA-15 material is studied by small-angle Xray scattering (SAXS). It is shown that in this material, a part of silica exists as non-porous amorphous particles and does not make an ordered porous structure. A new technique is proposed to determine non-porous amorphous silica in ordered mesoporous silica materials. This technique allows the determination of not only the amount of non-porous amorphous silica in a porous matrix, but also its particle size distribution.

Original languageEnglish
Pages (from-to)147-152
Number of pages6
JournalJournal of Structural Chemistry
Volume62
Issue number1
DOIs
Publication statusPublished - Jan 2021

Keywords

  • non-porous amorphous silica
  • ordered mesoporous materials
  • Ostwald ripening
  • SAXS
  • SBA-15

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