Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/90020
Title: Application of promising electrode materials in contact with a thin-layer ZrO2-based supporting electrolyte for solid oxide fuel cells
Authors: Osinkin, D. A.
Antonova, E. P.
Lesnichyova, A. S.
Tropin, E. S.
Chernov, M. E.
Chernov, E. I.
Farlenkov, A. S.
Khodimchuk, A. V.
Eremin, V. A.
Kovrova, A. I.
Kuzmin, A. V.
Ananyev, M. V.
Issue Date: 2020
Publisher: MDPI AG
Citation: Application of promising electrode materials in contact with a thin-layer ZrO2-based supporting electrolyte for solid oxide fuel cells / D. A. Osinkin, E. P. Antonova, A. S. Lesnichyova, E. S. Tropin, et al. . — DOI 10.3390/en13051190 // Energies. — 2020. — Vol. 5. — Iss. 13. — 1190.
Abstract: The paper presents the results of an investigation into thin single- and triple-layer ZrO2-Sc2O3-based electrolytes prepared using the tape-casting technique in combination with promising electrodes based on La2NiO4+δ and Ni-Ce0.8Sm0.2O2-δ materials. It is shown that pressing and joint sintering of single electrolyte layers allows multilayer structures to be obtained that are free of defects at the layer interface. Electrical conductivity measurements of a triple-layer electrolyte carried out in longitudinal and transverse directions with both direct and alternating current showed resistance of the interface between the layers on the total resistance of the electrolyte to be minimal. Long-term tests have shown that the greatest degradation in resistance over time occurs in the case of an electrolyte with a tetragonal structure. Symmetrical electrochemical cells with electrodes fabricated using a screen-printing method were examined by means of electrochemical impedance spectroscopy. The polarization resistance of the electrodes was 0.45 and 0.16 Ohm∙cm2 at 800 °C for the fuel and oxygen electrodes, respectively. The distribution of relaxation times method was applied for impedance data analysis. During tests of a single solid oxide fuel cell comprising a supporting triple-layer electrolyte having a thickness of 300 microns, a power density of about 160 mW/cm2 at 850 °C was obtained using wet hydrogen as fuel and air as an oxidizing gas. © 2020 by the authors.
Keywords: CONDUCTIVITY
DRT
SOFC
THIN-LAYER SUPPORTING ELECTROLYTE
TRIPLE-LAYER ELECTROLYTE
CASTING
CERIUM COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTROCHEMICAL ELECTRODES
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY
LANTHANUM COMPOUNDS
NICKEL COMPOUNDS
SAMARIUM COMPOUNDS
SCREEN PRINTING
SINTERING
SOLID OXIDE FUEL CELLS (SOFC)
ZIRCONIA
ELECTRICAL CONDUCTIVITY MEASUREMENTS
MULTILAYER STRUCTURES
POLARIZATION RESISTANCES
SCREEN PRINTING METHODS
SUPPORTING ELECTROLYTE
SYMMETRICAL ELECTROCHEMICAL CELLS
TAPE-CASTING TECHNIQUE
TETRAGONAL STRUCTURE
SOLID ELECTROLYTES
URI: http://elar.urfu.ru/handle/10995/90020
Access: info:eu-repo/semantics/openAccess
cc-by
SCOPUS ID: 85081123034
WOS ID: 000524318700177
PURE ID: 12428809
ISSN: 1996-1073
DOI: 10.3390/en13051190
metadata.dc.description.sponsorship: Russian Foundation for Basic Research, RFBR: 17‐08‐ 01227
Government Council on Grants, Russian Federation
Funding: The study was partly financially supported by the Russian Foundation for Basic Research (17‐08‐ 01227), Russian Federation Government, agreement 02.A03.21.0006 (No. 211) and “InEnergy” LTD agreement of 2018.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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