Crystal structure and ionic conductivity of a new bismuth tungstate,Bi3W2O10.5

Muktha, B and Row, TNG (2006) Crystal structure and ionic conductivity of a new bismuth tungstate,Bi3W2O10.5. In: International Conference on Recent Developments in Metal Oxides and Related Materials,, Jan 09-11, 2006, Bangalore, India, pp. 43-46.

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Abstract

The compound Bi3W2O10.5 was synthesized by the solid-state technique from Bi2O3 and WO3 in stoichiometric quantities. Single crystals were grown by the melt-cooling technique and the crystal structure was solved in the tetragonal 141in space group with a = 3.839 (1) A, c = 16-3S2 (5) A, V = 241.4 (1) angstrom(3), Z = 4 and was refined to an R index of 0.0672. The structure represents a modification of the Aurivillius phase and consists of [Bi2O2](2+) units separated by WO8 polyhedra. a.c. impedance studies indicate oxide ion conductivity of 2.91 10(-5) cm(-1) at 600 degrees C.

Item Type:	Conference Paper
Publication:	Journal of Chemicsl Science
Publisher:	Indian Academy of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Keywords:	bismuth tungstate;single crystal X-ray diffraction;a.c. impedance;oxide ion conductivity.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	08 Sep 2010 07:25
Last Modified:	19 Sep 2010 06:15
URI:	http://eprints.iisc.ac.in/id/eprint/31837

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