Hydrothermal synthesis of lead titanate from complexed precursor solutions

M. C. Gelabert, B. L. Gersten, R. E. Riman

Research output: Contribution to journalConference articlepeer-review

29 Scopus citations

Abstract

Lead titanate was synthesized at 200°C from chelated titanium and lead in alkaline, aqueous solution. Complexing agents included H2O2 and EDTA, with KOH and KF as mineralizers. After synthesis in hydrothermal autoclaves, the products were examined by field emission scanning electron microscopy (FESEM) and powder X-ray diffraction. Samples prepared with low Ti (< 8 mmolal) and high KOH (> 1.2 m) concentrations were found to contain dendritic powder combined with a small fraction of square platelets varying in size from 50-200 μm. X-ray diffraction confirmed that the yellow powders were single-phase, tetragonal PbTiO3. The conditions under which these platelets were formed (200°C, 200 psi) are mild compared to conventional hydrothermal routes, which require > 500°C and > 10000 psi to grow crystals of comparable size.

Original languageEnglish (US)
Pages (from-to)497-500
Number of pages4
JournalJournal of Crystal Growth
Volume211
Issue number1
DOIs
StatePublished - Apr 1 2000
EventThe 11th American Conference on Crystal Growth and Epitaxy - Tucson, AZ, USA
Duration: Aug 1 1999Aug 6 1999

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Hydrothermal synthesis of lead titanate from complexed precursor solutions'. Together they form a unique fingerprint.

Cite this