Structural Features and Transport Properties of La(Sr)Fe1-xNixO3-δ– Ce0.9Gd0.1O2-δ Nanocomposites—Advanced Materials for IT SOFC Cathodes Full article
Conference |
International Symposium on Innovative Materials for Processes in Energy Systems - For Fuel Cells, Heat Pumps and Sorption Systems 29 Nov - 1 Dec 2010 , Singapore |
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Journal |
Heat Transfer Engineering
ISSN: 0145-7632 , E-ISSN: 1521-0537 |
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Output data | Year: 2013, Volume: 34, Number: 11-12, Pages: 904-916 Pages count : 13 DOI: 10.1080/01457632.2012.752685 | ||||||||
Tags | Electron spectroscopy; Isotopes; anocomposites; Nanocrystalline powders; Organic solvents; Oxygen; Perovskite; Photoelectrons; Sintering; Surface properties; Temperature programmed desorption; Transmission electron microscopy; Transport properties; X ray diffraction; X ray photoelectron spectroscopy | ||||||||
Authors |
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Affiliations |
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Funding (4)
1 | Siberian Branch of the Russian Academy of Sciences | 57 |
2 | The Ministry of Education and Science of the Russian Federation | 14.740.12.1357 |
3 | Президиум РАН | 57 |
4 | Национальная академия наук Беларуси | T09C-003 |
Abstract:
Mixed ionic−electronic conducting nanocomposites comprising complex oxides - perovskite (lanthanum-strontium nickelate-ferrite [LSFN]) and gadolinium-doped ceria (GDC) have been prepared via ultrasonic dispersion of nanocrystalline powders of LSFNx and GDC in organic solvent with addition of surfactant, followed by drying and sintering up to 1300°C. Their structural and surface properties have been studied by x-ray diffraction, ultraviolet–visible (UV-vis) electron spectroscopy, transmission electron microscopy with elemental analysis, and x-ray photoelectron spectroscopy. Results of impedance spectroscopy, oxygen isotope exchange, O2 temperature-programmed desorption, weight, and conductivity relaxation experiments have revealed a strong positive effect of perovskite−fluorite nanodomain interfaces in composite on the oxygen mobility and reactivity. Testing in wet H2/air feeds for a button-size cell with functionally graded LSFN0.4–GDC cathode layer supported on a thin YSZ layer covering Ni/YSZ cermet has demonstrated high and stable performance, promising for the practical application in the intermediate temperature range.
Cite:
Pavlova S.
, Kharlamova T.
, Sadykov V.
, Krieger T.
, Muzykantov V.
, Bespalko Y.
, Ishchenko A.
, Rogov V.
, Belyaev V.
, Okhlupin Y.
, Uvarov N.
, Smirnova A.
Structural Features and Transport Properties of La(Sr)Fe1-xNixO3-δ– Ce0.9Gd0.1O2-δ Nanocomposites—Advanced Materials for IT SOFC Cathodes
Heat Transfer Engineering. 2013. V.34. N11-12. P.904-916. DOI: 10.1080/01457632.2012.752685 WOS Scopus РИНЦ ANCAN OpenAlex
Structural Features and Transport Properties of La(Sr)Fe1-xNixO3-δ– Ce0.9Gd0.1O2-δ Nanocomposites—Advanced Materials for IT SOFC Cathodes
Heat Transfer Engineering. 2013. V.34. N11-12. P.904-916. DOI: 10.1080/01457632.2012.752685 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Accepted: | Feb 6, 2013 |
Published online: | Mar 13, 2013 |
Published print: | Sep 26, 2013 |
Identifiers:
Web of science: | WOS:000327791700004 |
Scopus: | 2-s2.0-84875401549 |
Elibrary: | 20427922 |
Chemical Abstracts: | 2013:222330 |
Chemical Abstracts (print): | 160:343949 |
OpenAlex: | W1970204088 |