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Fabrication and Phase Transformation in Crystalline Nanoparticles of PbZrO3 Derived By Sol-Gel

Singh, Satyendra and Krupanidhi, SB (2009) Fabrication and Phase Transformation in Crystalline Nanoparticles of PbZrO3 Derived By Sol-Gel. In: Current Nanoscience, 5 (4). pp. 489-492.

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Official URL: http://www.bentham.org/cnano/CurrentIssue.htm#14

Abstract

In this research fabrication of crystalline PbZrO3 (PZ) nanoparticles and their phase transformation behavior is investigated. A novel sol-gel method was used for the synthesis of air-stable and precipitate-free diol-based sol of PZ, which was dried at 150 degrees C and then calcined at 300-700 degrees C for 1 h. The morphology, crystallinity and phase formation of as synthesized nanoparticles were studied by the selected-area electron diffraction (SAED), X-ray diffraction (XRD), thermal gravimetric analysis/differential scanning calorimetry (TGA-DSC), and high resolution transmission electron microscope (HRTEM). The XRD, SAED, and TGA-DSC analyses confirmed the tetragonal lead rich zirconia phase (t-Z phase) and monoclinic zirconia phase (m-Z phase) as the intermediate phases during the calcinations process followed by crystallization of single orthorhombic PZ phase at about 700 degrees C. The average PZ particle size was observed about 20 nm as confirmed by TEM study. Energy-dispersive X-ray spectroscopy (EDX) analysis demonstrated that stoichiometric PbZrO3 was formed.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Bentham Science Publishers Ltd.
Keywords: Nanoparticles; PbZrO3; Sol-gel method; TEM
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 07 Dec 2009 05:34
Last Modified: 07 Dec 2009 05:34
URI: http://eprints.iisc.ernet.in/id/eprint/24994

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