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Synthesis of ultrafine BaTiO3particles from polymeric precursor: their structure and surface property

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
266
Identifiers
DOI: 10.1016/s0925-8388(97)00446-5
Keywords
  • Ultrafine Batio3
  • Polymeric Precursor Method
  • Crystal Structure
  • Surface Property

Abstract

Abstract Barium titanate (BaTiO 3) particles of about 20 nm in size have been synthesized by heat-treating polymeric precursors containing barium and titanium in air at 600°C for 8 h. The crystal structure has been investigated using X-ray powder diffractometry (XRD) and Raman spectroscopy. The XRD measurement indicated formation of cubic BaTiO 3. However, the Raman spectrum suggested that the tetragonal structure might be slightly sustained in the ultrafine BaTiO 3 particles. Zeta potentials as a surface property of the particles were also determined by an electrophoretic light scattering technique as a function of pH.

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