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Synthesis, characterization, and dielectric properties of nanocrystalline Ba1−xPbxZrO3 (0 ≤ x ≤ 0.75) by polymeric citrate precursor route

Published online by Cambridge University Press:  31 July 2012

Omar A. Al-Hartomy ,
Mohd Ubaidullah ,
Sarvari Khatoon ,
Jamal H. Madani  and
Tokeer Ahmad
Omar A. Al-Hartomy*
Affiliation:
Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia; and Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Mohd Ubaidullah
Affiliation:
Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
Sarvari Khatoon
Affiliation:
Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
Jamal H. Madani
Affiliation:
Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
Tokeer Ahmad*
Affiliation:
Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
*
a)Address all correspondence to these authors. e-mail: oalhartomy@hotmail.com
b)e-mail: tahmad3@jmi.ac.in
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Abstract

Solid solutions of Ba1−xPbxZrO3 (0 ≤ x ≤ 0.75) have been synthesized successfully by polymeric citrate precursor method for the first time. The solid solutions were characterized by powder x-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and surface area studies. XRD studies reveal the monophasic nature of these highly crystalline nanoparticles (except few impurity of ZrO2 in PbZrO3). Lattice parameter of Ba1−xPbxZrO3 (0.20 ≤ x ≤ 0.75) decreases with increasing the Pb content. Dielectric properties of these nanoparticles were investigated as a function of frequency and temperature. The dielectric constant for x = 0.15 showed a maximum value of 75.5.

Keywords

X-ray diffraction (XRD)Dielectric propertiesScanning electron microscopy (SEM)
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 19 , 14 October 2012 , pp. 2479 - 2488
Copyright
Copyright © Materials Research Society 2012

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