Please use this identifier to cite or link to this item:
|Application of promising electrode materials in contact with a thin-layer ZrO2-based supporting electrolyte for solid oxide fuel cells
|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.
|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.
|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.
THIN-LAYER SUPPORTING ELECTROLYTE
ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY
SOLID OXIDE FUEL CELLS (SOFC)
ELECTRICAL CONDUCTIVITY MEASUREMENTS
SCREEN PRINTING METHODS
SYMMETRICAL ELECTROCHEMICAL CELLS
|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
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.