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The influence of cation non-stoichiometry on the properties of undoped and gadolinia-doped barium cerate

Shima, D. and Haile, S. M. (1997) The influence of cation non-stoichiometry on the properties of undoped and gadolinia-doped barium cerate. Solid State Ionics, 97 (1-4). pp. 443-455. ISSN 0167-2738. https://resolver.caltech.edu/CaltechAUTHORS:20131125-162533248

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Abstract

The influence of A:B cation non-stoichiometry on the structural and electrical properties of BaCeO_3 and of 15% Gd-doped BaCeO_3 has been investigated. X-ray powder diffraction and water uptake measurements suggest the occupation of Ba sites by Gd in barium-deficient, doped materials. This phenomenon is exacerbated by high temperature processing, which causes additional loss of barium. The relationship between defect chemistry, stoichiometry and conductivity, as measured by a.c. impedance spectroscopy, is discussed.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0167-2738(97)00029-5DOIArticle
http://www.sciencedirect.com/science/article/pii/S0167273897000295PublisherArticle
ORCID:
AuthorORCID
Haile, S. M.0000-0002-5293-6252
Additional Information:Copyright © 1997 Elsevier.
Subject Keywords:BaCeO3 stoichiometry barium cerate proton conduction defect chemistry PROTONIC CONDUCTION BACEO3 CRYSTALS BACE0.9GD0.1O2.95 TRANSPORT SRCEO3 YB
Issue or Number:1-4
Record Number:CaltechAUTHORS:20131125-162533248
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20131125-162533248
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42727
Collection:CaltechAUTHORS
Deposited By: Jonathan Gross
Deposited On:03 Dec 2013 00:26
Last Modified:03 Oct 2019 06:01

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