Structure formation of zirconium oxide gels in alcoholic solution

O. Stachs, Th Gerber, V. Petkov

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Zirconium oxide gels were prepared by controlled hydrolysis and condensation of zirconium-n-propoxide in alcoholic solution. After completion of the gelation the aging and drying of the alcogel was observed in situ by Small and Wide Angle X-ray Scattering experiments at room temperature. The xerogels obtained have been annealed at different temperatures to crystallization. The structural changes were observed by using SAXS and WAXS. Structural models reproducing the experimental WAXS data have been simulated by the reverse Monte Carlo method. A comparison between zirconium oxide xerogels obtained under different thermal treatments was made and evidence was found that thermal treatment at higher temperatures and preparation conditions affect the atomic arrangement of these amorphous gels.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalJournal of Sol-Gel Science and Technology
Volume15
Issue number1
DOIs
StatePublished - 1999

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