La0.8Sr0.2Ni0.4Fe0.6O 3-Ce0.8Gd0.2O2-δ Nanocomposite as Mixed Ionic-Electronic Conducting Material for SOFC Cathode and Oxygen Permeable Membranes: Synthesis and Properties Full article
Conference |
1st Asian Symposium on Advanced Materials 01-04 Oct 2007 , Владивосток |
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Journal |
Composite Interfaces
ISSN: 0927-6440 , E-ISSN: 1568-5543 |
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Output data | Year: 2009, Volume: 16, Number: 4, Pages: 407-431 Pages count : 25 DOI: 10.1163/156855409X450855 | ||||||||||
Tags | Characterization, Perovskite-fluorite nanocomposite, SOFC, Synthesis, Transport properties | ||||||||||
Authors |
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Affiliations |
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Funding (4)
1 | International Science and Technology Center | 3234 |
2 | Siberian Branch of the Russian Academy of Sciences | 95 |
3 | European Commission | 20089 FP6-2004-ENERGY-3 SOFC600 |
4 | North Atlantic Treaty Organization | SfP-980878 |
Abstract:
Mixed ionic–electronic conducting nanocomposite La0.8Sr0.2Ni0.4Fe0.6O3 (LSNF)–Ce0.8Gd0.2O2–δ (GDC) was prepared via ultrasonic dispersion of nanocrystalline powders of perovskite and fluorite oxides in water with addition of surfactant, followed by drying and sintering up to 1300°C. Analysis of the real structure of nanocomposite (studied by XRD and TEM with EDX) and its surface composition (studied by XPS) revealed moderate redistribution of elements between phases favoring their epitaxy. Results of impedance spectroscopy, oxygen isotope exchange, O2 TPD and H2 TPR experiments revealed a positive effect of composite interfaces on the oxygen mobility and reactivity agreeing with the ambipolar transport behavior of MIEC composite. Preliminary testing of button-size cell with functionally graded LSNF–GDC cathode layer supported on thin YSZ layer covering Ni/YSZ cermet demonstrated high and stable performance, which is promising for its practical application.
Cite:
Sadykov V.
, Kharlamova T.
, Batuev L.
, Muzykantov V.
, Mezentseva N.
, Krieger T.
, Alikina G.
, Lukashevich A.
, Rogov V.
, Zaikovskii V.
, Ishchenko A.
, Salanov A.
, Boronin A.
, Koscheev S.
, Pavlova S.
, Uvarov N.
, Smirnova A.
, Vasylyev O.
La0.8Sr0.2Ni0.4Fe0.6O 3-Ce0.8Gd0.2O2-δ Nanocomposite as Mixed Ionic-Electronic Conducting Material for SOFC Cathode and Oxygen Permeable Membranes: Synthesis and Properties
Composite Interfaces. 2009. V.16. N4. P.407-431. DOI: 10.1163/156855409X450855 WOS Scopus РИНЦ ANCAN OpenAlex
La0.8Sr0.2Ni0.4Fe0.6O 3-Ce0.8Gd0.2O2-δ Nanocomposite as Mixed Ionic-Electronic Conducting Material for SOFC Cathode and Oxygen Permeable Membranes: Synthesis and Properties
Composite Interfaces. 2009. V.16. N4. P.407-431. DOI: 10.1163/156855409X450855 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: | Mar 3, 2008 |
Accepted: | Jul 11, 2008 |
Published print: | Jan 1, 2009 |
Published online: | Apr 2, 2012 |
Identifiers:
Web of science: | WOS:000268957700013 |
Scopus: | 2-s2.0-71649109334 |
Elibrary: | 15299350 |
Chemical Abstracts: | 2009:1092801 |
Chemical Abstracts (print): | 153:341054 |
OpenAlex: | W2086841662 |