Islam, Quazi Arif and Raja, Mir Wasim and Basu, Rajendra Nath (2014) Synthesis of BaBi0.2Co0.Fe-35(0).O-45(3-delta) by a novel aqueous soft chemical method and its characterizations. Journal of Alloys and Compounds, 583. pp. 7-14. ISSN 0925-8388

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BaBi0.Co-2(0).Fe-35(0).O-45(3-delta)(BBCF) single phase perovskite has been successfully synthesized by a novel alanine assisted soft chemical combustion method. Thermal behavior of metal alanine complexes during combustion to form BBCF perovskite structure has been studied in detail. X- ray diffraction patterns reveal that the formation of single phase BBCF perovskite proceeds by formation of several intermediate phases. A single phase BBCF powder is obtained at a temperature of 950 degrees C. Homogeneous distribution of multiple dopants in BBCF matrix is confirmed by elemental mapping using FESEM. The electrical conductivity reveals that with the increase in sintering temperature, conductivity of BBCF increases, reaches to a maximum value of 10.38 S cm 1 at 800 degrees C when measured in air for samples sintered at 950 degrees C and upon further increase in sintering temperature, the conductivity decreases gradually. Up to 800 degrees C, BBCF shows a semiconducting behavior and subsequently follows metallic conduction above 800 degrees C while performing electrical conductivity measurement in air. (C) 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Electronics
Divisions: Fuel Cell and Battery
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Dec 2014 09:18
Last Modified: 16 Dec 2014 09:18

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