This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/j.ssi.2009.03.006 in citations.
Development and characterization of a quasi-ternary diagram based on La0.8Sr0.2(Co,Cu,Fe)O3 oxides in view of application as a cathode contact material for solid oxide fuel cells
Development and characterization of a quasi-ternary diagram based on La0.8Sr0.2(Co,Cu,Fe)O3 oxides in view of application as a cathode contact material for solid oxide fuel cells
Oxides resulting from discrete changes in composition within the quasi-ternary system La0.8Sr0.2CuO2.4(sic)La0.8Sr0.2CoO3 (- delta)-La0.8Sr0.2FeO3 (- delta) were investigated under similar experimental conditions with the objective of obtaining an overview of the variation of the relevant properties...
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Personal Name(s): | Montero, X. |
---|---|
Fischer, W. / Tietz, F. / Cassir, M. / Stöver, D. / Villareal, I. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEF-1 JARA-ENERGY; JARA-ENERGY |
Published in: | Solid state ionics, 180 (2009) |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2009
|
DOI: |
10.1016/j.ssi.2009.03.006 |
Document Type: |
Journal Article |
Research Program: |
Solid Oxide Fuel Cell Rationelle Energieumwandlung |
Series Title: |
Solid State Ionics
180 |
Subject (ZB): | |
Publikationsportal JuSER |
Oxides resulting from discrete changes in composition within the quasi-ternary system La0.8Sr0.2CuO2.4(sic)La0.8Sr0.2CoO3 (- delta)-La0.8Sr0.2FeO3 (- delta) were investigated under similar experimental conditions with the objective of obtaining an overview of the variation of the relevant properties for possible applications as cathode contact layer in SOFCs. Twenty-two oxide compositions within this system were systematically selected and synthesized under identical conditions by the Pechini method. The distribution of the different crystallographic phases at 1050 degrees C within this quasi-ternary phase diagram, the DC electrical conductivity at 800 degrees C and the thermal expansion coefficients are presented. Perovskites of different compositions issued from this ternary diagram were tested as cathode contact material between an La0.8Sr0.2FeO3 cathode and a Crofer22APU interconnect by resistance measurements at 800 degrees C. The application of a MnCo1.9Fe0.1O4 spinel protection reduced the interfacial reaction between the Crofer22APU and the cathode contact material. Electrical resistance measurements at 800 degrees C in air up to 1000 h and the analysis by scanning electron microscopy/energy-dispersive X-ray spectroscopy of the sample cross-sections were carried out to verify the Surface stability and the electrical performance. (c) 2009 Elsevier B.V. All rights reserved. |