LAPSE:2023.21962
Published Article
LAPSE:2023.21962
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO2-Based Supporting Electrolyte for Solid Oxide Fuel Cells
March 23, 2023
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.
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.
Record ID
Keywords
conductivity, DRT, SOFC, thin-layer supporting electrolyte, triple-layer electrolyte
Subject
Suggested Citation
Osinkin DA, Antonova EP, Lesnichyova AS, Tropin ES, Chernov ME, Chernov EI, Farlenkov AS, Khodimchuk AV, Eremin VA, Kovrova AI, Kuzmin AV, Ananyev MV. Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO2-Based Supporting Electrolyte for Solid Oxide Fuel Cells. (2023). LAPSE:2023.21962
Author Affiliations
Osinkin DA: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Antonova EP: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Lesnichyova AS: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Tropin ES: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Chernov ME: “Ekon” Ltd, Obninsk 249037, Russia
Chernov EI: “Ekon” Ltd, Obninsk 249037, Russia
Farlenkov AS: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia [ORCID]
Khodimchuk AV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Eremin VA: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Kovrova AI: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia
Kuzmin AV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Ananyev MV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Antonova EP: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Lesnichyova AS: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Tropin ES: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Chernov ME: “Ekon” Ltd, Obninsk 249037, Russia
Chernov EI: “Ekon” Ltd, Obninsk 249037, Russia
Farlenkov AS: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia [ORCID]
Khodimchuk AV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Eremin VA: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Kovrova AI: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia
Kuzmin AV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Ananyev MV: Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia; Institute of Chemical Engineering, Ural Federal University, Yekaterinburg 620002, Russia
Journal Name
Energies
Volume
13
Issue
5
Article Number
E1190
Year
2020
Publication Date
2020-03-05
ISSN
1996-1073
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PII: en13051190, Publication Type: Journal Article
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LAPSE:2023.21962
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https://doi.org/10.3390/en13051190
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