SONOCATALYSED HYDROTHERMAL PREPARATION OF LEAD TITANATE NANOPOWDERS

SONOCATALYSED HYDROTHERMAL PREPARATION OF LEAD TITANATE NANOPOWDERS

Nanoparticles of perovskite lead titanate, PbTiO3, were prepared in a stoichiometric proportion at a low temperature and short reaction time of only 130 C and 3.5 h. The use of ultrasonic treatment prior to hydrothermal reaction, or the so-called 'sonocatalysed hydrothermal reaction', was...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Materials letters 2007-01, Vol.61 (23/24), p.4522-4524
Hauptverfasser: Rujiwatra, A, Wongtaewan, C, Pinyo, W, Ananta, S
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Nanoparticles of perovskite lead titanate, PbTiO3, were prepared in a stoichiometric proportion at a low temperature and short reaction time of only 130 C and 3.5 h. The use of ultrasonic treatment prior to hydrothermal reaction, or the so-called 'sonocatalysed hydrothermal reaction', was examined in detail. The roles of ultrasonic waves both as a catalyst to lower the hydrothermal reaction temperature affording phase-pure PbTiO3 and as an external influence to provide better size homogeneity are discussed. 17 refs.
ISSN:0167-577X