Combined SANS and SAXS study of the action of ultrasound on the structure of amorphous zirconia gels

N. N. Gubanova, A. Ye Baranchikov, G. P. Kopitsa, L. Almásy, B. Angelov, A. D. Yapryntsev, L. Rosta, V. K. Ivanov

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In the present work, we have studied for the first time the combined effect of both sonication and precipitation pH on the structure of amorphous zirconia gels synthesized from zirconium(IV) propoxide. The techniques of small-angle neutron and X-ray scattering (SANS and SAXS) and low temperature nitrogen adsorption provided the integral data on the changes in the microstructure and mesostructure of these materials caused by ultrasonic (US) treatment. Amorphous ZrO2·xH2O synthesized under ultrasonic treatment was found to possess a very structured surface, characterized by the surface fractal dimension 2.9-3.0, compared to 2.3-2.5 for the non US-assisted synthesis, and it was also found to possess a higher specific surface area, while the sizes of the primary particles remain unchanged.

Original languageEnglish
Pages (from-to)230-237
Number of pages8
JournalUltrasonics Sonochemistry
Volume24
DOIs
Publication statusPublished - 2015

Fingerprint

zirconium oxides
Ultrasonics
Zirconia
ultrasonic processing
Gels
gels
Fractals
Sonication
Neutrons
Fractal dimension
X ray scattering
Particle Size
Zirconium
Specific surface area
Adsorption
fractals
Nitrogen
ultrasonics
X-Rays
nitrogen

Keywords

  • Fractals
  • Mesostructure
  • Small-angle neutron scattering
  • Small-angle X-ray scattering
  • Ultrasonication
  • Zirconia

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Acoustics and Ultrasonics
  • Radiology Nuclear Medicine and imaging

Cite this

Gubanova, N. N., Baranchikov, A. Y., Kopitsa, G. P., Almásy, L., Angelov, B., Yapryntsev, A. D., ... Ivanov, V. K. (2015). Combined SANS and SAXS study of the action of ultrasound on the structure of amorphous zirconia gels. Ultrasonics Sonochemistry, 24, 230-237. https://doi.org/10.1016/j.ultsonch.2014.11.012

Combined SANS and SAXS study of the action of ultrasound on the structure of amorphous zirconia gels. / Gubanova, N. N.; Baranchikov, A. Ye; Kopitsa, G. P.; Almásy, L.; Angelov, B.; Yapryntsev, A. D.; Rosta, L.; Ivanov, V. K.

In: Ultrasonics Sonochemistry, Vol. 24, 2015, p. 230-237.

Research output: Contribution to journalArticle

Gubanova, N. N. ; Baranchikov, A. Ye ; Kopitsa, G. P. ; Almásy, L. ; Angelov, B. ; Yapryntsev, A. D. ; Rosta, L. ; Ivanov, V. K. / Combined SANS and SAXS study of the action of ultrasound on the structure of amorphous zirconia gels. In: Ultrasonics Sonochemistry. 2015 ; Vol. 24. pp. 230-237.
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