Hydrothermal Synthesis of Lead Titanate Fine Powders at Water Boiling Temperature
Chaiyos Chankaew, and Apinpus Rujiwatra* Author for corresponding; e-mail address: apinpus@gmail.com
Volume: Vol.37 No.1 (JANUARY 2010)
Research Article
DOI:
Received: 10 June 2009, Revised: -, Accepted: 22 July 2009, Published: -
Citation: Chankaew C. and Rujiwatra A., Hydrothermal Synthesis of Lead Titanate Fine Powders at Water Boiling Temperature, Chiang Mai Journal of Science, 2010; 37(1): 92-98.
Abstract
Lead titanate fine powders comprising of a single tetragonal phase and well characterized particles were successfully synthesized at an exceptionally low temperature of 100oC. The important role of the ultrasonication in reducing the thermodynamic barrier of the hydrothermal reaction, and the slow rate of hydrothermal reaction at 100oC were underlined. The synthesized particles were revealed to be tetragonal in shape, mostly submicrometers in size, and generally present as large aggregates. The layer-by-layer model was also proposed as the particle growth mechanism.