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Hydrothermal synthesis of ferroelectric perovskites from chemically modified titanium isopropoxide and acetate salts

Published online by Cambridge University Press:  31 January 2011

Jooho Moon ,
Jeffrey A. Kerchner ,
Henrik Krarup  and
James H. Adair
Jooho Moon
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
Jeffrey A. Kerchner
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
Henrik Krarup
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
James H. Adair
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611
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Abstract

The feasibility of the acetylacetonate-Ti isopropoxide complex as a new precursor for synthesis of Ti-based perovskite particles under hydrothermal conditions has been demonstrated. Perovskite powders including BaTiO3, PbTiO3, PZT, PLZT, and SrTiO3 were prepared by reacting the acetylacetonate-modified Ti precursor in metal acetate aqueous salt solution under hydrothermal conditions. Synthesis parameters including reaction time and temperature, feedstock concentration, nd reaction medium significantly influence particle characteristics of the hydrothermally derived erovskite powders. It is proposed that use of the acetylacetonate-modified Ti precursor promotes ntimate mixing among multicomponent reacting species at the molecular level and promotes article formation through a dissolution/recrystallization mechanism.

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Articles
Information
Journal of Materials Research , Volume 14 , Issue 2 , February 1999 , pp. 425 - 435
Copyright
Copyright © Materials Research Society 1999

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