Wet-chemical route for the preparation of lead zirconate: An amorphous carbon- and halide-free precursor synthesized by the hydrogen peroxide based route

E. R. Camargo, M. Popa, J. Frantti, M. Kakihana

研究成果: Article査読

28 被引用数 (Scopus)

抄録

PbZrO3 (PZ) nanoparticles were synthesized through a halide- and organic-free hydrogen peroxide method at 700 °C for 2 h. Stoichiometric amounts of zirconyl nitrate and lead nitrate were dissolved in a diluted H2O2 (aqueous) solution, which was slowly dropped into a solution of H2O2 and NH3 (pH = 11). The precipitate of Pb-Zr, obtained from an exothermic oxy-reduction reaction, was filtered and washed to eliminate all nitrate ions. The precipitate was dried, ground, and calcined between 300 and 1000 °C, for 5 min to 8 h. Tetragonal, lead-rich zirconia solid solution (t-Z) was identified by thermogravimetry-differential thermal analysis, X-ray diffraction, and Raman spectroscopy as an intermediate phase during the calcination process, followed by the crystallization of the orthorhombic PZ phase. The average particle size was estimated to be 50 nm from scanning electron microscopy pictures. The change in the amount of residual t-Z phase in PZ powders was estimated from the Raman spectra.

本文言語English
ページ(範囲)3943-3948
ページ数6
ジャーナルChemistry of Materials
13
11
DOI
出版ステータスPublished - 2001 12月 10
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料化学

フィンガープリント

「Wet-chemical route for the preparation of lead zirconate: An amorphous carbon- and halide-free precursor synthesized by the hydrogen peroxide based route」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル