Structure of solid phases in titania and zirconia gels

S. Komarneni, E. Breval, R. Roy

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The goal of this study was to determine the chemistry and atomic structure of the solid component of titania and zirconia gels. These were made from both inorganic and organic sources. X-ray diffraction (XRD) and selected area electron diffraction (SAED) failed to show the presence of any crystalline Ti and Zr hydroxides, oxyhydroxides or oxides even with extensive hydroxyl bridging in the gels. Alcogels made from alkoxides were likewise determined to be truly amorphous to both XRD and SAED. Some of the non-dispersible gels made from TiCl4 and ZrOCl2 in NaOH contain very poorly crystalline oxides by SAED. The differences in morphology among the various gels are reported: alcogels of titania and zirconia showing porosity.

Original languageEnglish (US)
Pages (from-to)195-203
Number of pages9
JournalJournal of Non-Crystalline Solids
Volume79
Issue number1-2
DOIs
StatePublished - Jan 1986

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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