Development of Composite LaNi0·6Fe0.4O3-δ-based Air Electrodes for Solid Oxide Fuel Cells with a Thin-Film Bilayer Electrolyte Full article
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487 |
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| Output data | Year: 2021, Volume: 46, Number: 32, Pages: 16947-16964 Pages count : 18 DOI: 10.1016/j.ijhydene.2021.02.217 | ||||||||||
| Tags | Collector; Doped Bi2O3; LaNi0.6Fe0.4O3-δ; Polarization resistance; SOFC cathode; SOFC performance | ||||||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 20-03-00151 (АААА-А20-120022090045-9) |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0011 |
Abstract:
In this study the bilayer composite electrodes based on LaNi0.6Fe0.4O3-δ (LNF) electronic conductor and Bi2O3-based electrolytes doped with Er (Bi1.6Er0.4O3, EDB) and Y (Bi1.5Y0.5O3, YDB) have been developed and their performance has been investigated in the dependence on the electrolyte content and sintering conditions. The polarization resistance of the optimized electrodes with electrolyte content of 50 wt % in the functional layer and with the LNF-EDB-CuO collector is in a range of 0.65–1.09 Ω cm2 at 600 °C and 0.10–0.12 Ω cm2 at 700 °C. The polarization characteristics of the Bi-based electrodes are compared with those for the composite electrodes based on LNF and Ce0.8Sm0.2O1.9 (SDC). The developed electrodes have been tested in a SOFC mode in the anode-supported cells with a thin film electrolyte of YSZ/YDC (Y-doped zirconia/ceria). The single cells with such cathodes are shown to have performance characteristics that are several times higher than that for the cell with a standard platinum cathode. This is due to the optimized content and dispersity of the components; high conductivity of ionic and electronic constituents of the composite electrodes; greatly extended triple phase boundary (TPB) of the electrochemical reaction and advanced electrode design with collector providing uniform current distribution. © 2021 Hydrogen Energy Publications LLC
Cite:
Pikalova E.
, Bogdanovich N.
, Kolchugin A.
, Shubin K.
, Ermakova L.
, Eremeev N.
, Farlenkov A.
, Khrustov A.
, Filonova E.
, Sadykov V.
Development of Composite LaNi0·6Fe0.4O3-δ-based Air Electrodes for Solid Oxide Fuel Cells with a Thin-Film Bilayer Electrolyte
International Journal of Hydrogen Energy. 2021. V.46. N32. P.16947-16964. DOI: 10.1016/j.ijhydene.2021.02.217 WOS Scopus РИНЦ AN OpenAlex
Development of Composite LaNi0·6Fe0.4O3-δ-based Air Electrodes for Solid Oxide Fuel Cells with a Thin-Film Bilayer Electrolyte
International Journal of Hydrogen Energy. 2021. V.46. N32. P.16947-16964. DOI: 10.1016/j.ijhydene.2021.02.217 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jan 11, 2021 |
| Accepted: | Feb 27, 2021 |
| Published online: | Mar 29, 2021 |
| Published print: | May 10, 2021 |
Identifiers:
| Web of science: | WOS:000644993100013 |
| Scopus: | 2-s2.0-85103407461 |
| Elibrary: | 46763866 |
| Chemical Abstracts: | 2021:696910 |
| OpenAlex: | W3149196783 |