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Solution-combustion synthesis of $Bi_{1-x}Ln_xO_{1.5}$ (Ln = Y and La–Yb) oxide ion conductors

Bellakki, Manjunath B and Prakash, AS and Shivakumara, C and Hegde, MS and Shukla, AK (2006) Solution-combustion synthesis of $Bi_{1-x}Ln_xO_{1.5}$ (Ln = Y and La–Yb) oxide ion conductors. In: Bulletin of Materials Science, 29 (4). pp. 339-345.

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Abstract

Cubic fluorite related $Bi_{1-x}Ln_xO_{1.5}$ (Ln = Y and La–Yb) phases are synthesized by solutioncombustion method using glycine as the fuel. The cubic fluorite phase is stabilized with 25 mole% of rare earth cations. The lattice parameter of cubic phase increases linearly with size of the lanthanide ion. The synthesized powders are nano-metric in size and exhibit excellent compactability and reach 98% densification even on short period of sintering. The oxides with relatively larger cations Nd, Sm, Eu, Pr and Gd with 25 mole% composition transform to rhombohedral structure while others retain cubic upon sintering. All the phases show high oxide–ion conductivity and the values obtained are in good agreement with the reported values.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Academy of sciences.
Keywords: Combustion synthesis;Bismuth oxides;Oxide–ion conductors
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 24 Nov 2006
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/9021

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