Subramania, A. and Saradha, T. and Muzhumathi, S. (2008) Synthesis and characterization of nanocrystalline La2Mo2O9 fast oxide-ion conductor by an in-situ polymerization method. Materials Research Bulletin, 43 (05). pp. 1153-1159. ISSN 0025-5408

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Abstract

A nanocrystalline La2Mo2O9 powder was synthesized via the pyrolysis of polyacrylate salt precursor prepared by an in-situ polymerization of the metal salts and acrylic acid. The pyrolysis behavior of the polymeric precursor was studied by thermal (TG/DTA) analysis. The obtained product was characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM) analysis. The results revealed that the average particle size is ~25 nm for La2Mo2O9 with good crystallinity. The synthesized nanocrystalline La2Mo2O9 powder showed good sinterability and reached ~99% of theoretical density when sintered at 800 C for 4 h. The La2Mo2O9 sample sintered at 800 C, yield good microstructure with improved conductivity value of about 0.12 S/cm at 800 C

Item Type:	Article
Uncontrolled Keywords:	Ceramics; Oxides; Impedance spectroscopy; Electrical properties; Ionic conductivity
Subjects:	Fuel Cells Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	05 Apr 2012 15:49
Last Modified:	05 Apr 2012 15:49
URI:	http://cecri.csircentral.net/id/eprint/2459

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