Dutta, Atanu and Kumar, A and Basu, Rajendra Nath (2009) Enhanced electrical conductivity in Ce(0.79)Gd(0.20)Co(0.01)O(2-delta) for low temperature solid oxide fuel cell applications. Electrochemistry Communications, 11 (3). pp. 699-701. ISSN 1388-2481

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Abstract

Very high electrical conductivity of similar to 0.021 S/cm at 600 degrees C is obtained in Ce(0.79)Gd(0.20)Co(0.01)O(2-delta). Corresponding activation energy of conduction similar to 0.43 eV measured in the temperature range of 400-700 degrees C is found to be notably low. Improved electrical properties with 99% of the theoretical density as obtained for these specimens, prepared using powder of average particle size similar to 20 nm and subsequent sintering at 1100 degrees C, is considered to be a significant step to reduce the processing temperature. The measured electrical potential of similar to 1 V indicates the suitability of its use as an electrolyte in electrochemical devices. (C) 2009 Elsevier B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Co-doped ceria electrolyte; Electrical conductivity; LT-SOFC
Subjects:	Electronics
Divisions:	Fuel Cell and Battery
Depositing User:	Ashok K Podder
Date Deposited:	22 Feb 2012 08:53
Last Modified:	01 Apr 2016 06:18
URI:	http://cgcri.csircentral.net/id/eprint/1001

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