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Low temperature synthesis of ultrafine strontium titanate (SrTiO3) powdersa)

Published online by Cambridge University Press:  31 January 2011

H.S. Potdar ,
S.B. Deshpande ,
P.D. Godbole ,
V.G. Gunjikar  and
S.K. Date
H.S. Potdar
Affiliation:
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
S.B. Deshpande
Affiliation:
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
P.D. Godbole
Affiliation:
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
V.G. Gunjikar
Affiliation:
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
S.K. Date
Affiliation:
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India
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Abstract

Ultrafine (≍0.4 μm) strontium titanate powder was synthesized using strontium nitrate and potassium titanyl oxalate as precursors. An aqueous (0.1 M) potassium titanyl oxalate solution was added dropwise to a (0.1 M) strontium nitrate solution with continuous stirring at room temperature to precipitate strontium titanyl oxalate (STO). The precipitate, after careful washing with distilled water several times, was air-dried and calcined at 550 °C/6 h to obtain homogeneous, spherical, stoichiometric powder of SrTiO3 ≍0.4 μm in size. The calcined powder was characterized using different techniques such as XRD, DTA/TG/DTG, SEM, and IR.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 2 , February 1992 , pp. 429 - 434
Copyright
Copyright © Materials Research Society 1992

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