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Preparation of nanocrystalline Sr3Al2O6powders via citric acid precursor

Authors
Journal
Powder Technology
0032-5910
Publisher
Elsevier
Publication Date
Volume
172
Issue
2
Identifiers
DOI: 10.1016/j.powtec.2006.10.045
Keywords
  • Sr3Al2O6
  • Synthesis
  • Citric Acid
Disciplines
  • Earth Science

Abstract

Abstract Sr 3Al 2O 6 was synthesized via citric acid precursor. The effects of the molar ratio of citric acid to total metal cations concentration (CA/M) on the formation of Sr 3Al 2O 6 were investigated. Increasing the CA/M promoted the formation of Sr 3Al 2O 6. Single-phase and well-crystallized Sr 3Al 2O 6 was obtained from the CA/M = 1, CA/M = 2 and CA/M = 4 precursor at temperature 1200 °C, 1100 °C and 900 °C, respectively. Differential thermal analysis and thermogravimetric (DTA/TG), X-ray diffractometry (XRD) and field emission scanning electron microscopy (FESEM) were used to characterize the precursors and the derived oxide powders. Sr 3Al 2O 6 nanoparticles with a diameter of about 50–70 nm were obtained.

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