期刊
APPLIED CATALYSIS A-GENERAL
卷 289, 期 1, 页码 84-89出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2005.04.054
关键词
SOFC; mixed conducting oxides; oxygen transport properties; oxygen reduction
The (18)O/(16)O isotope exchange depth profile technique (IEDP) followed by SIMS characterizations was applied to dense membranes of pure ionic conductors and mixed ionic/electronic conducting materials. It is a very useful tool since we obtain in both cases data concerning the oxygen diffusion in the bulk and the oxygen exchange at the surface of the materials. Comparisons were done, including results concerning the role of the surface with regards to the oxygen reduction reaction. Detailed experimental and analytical processes are given. (c) 2005 Elsevier B.V. All rights reserved.
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