Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells
The paper presents the results of an investigation into thin single- and triple-layer ZrO<sub>2</sub>-Sc<sub>2</sub>O<sub>3</sub>-based electrolytes prepared using the tape-casting technique in combination with promising electrodes based on La<sub>2</sub&...
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| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/5/1190 |
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doaj-acb3ee7888bf4b3cb608ba471ff91eaf2020-11-25T03:03:24ZengMDPI AGEnergies1996-10732020-03-01135119010.3390/en13051190en13051190Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel CellsDenis A. Osinkin0Ekaterina P. Antonova1Alena S. Lesnichyova2Evgeniy S. Tropin3Mikhail E. Chernov4Efim I. Chernov5Andrey S. Farlenkov6Anna V. Khodimchuk7Vadim A. Eremin8Anastasia I. Kovrova9Anton V. Kuzmin10Maxim V. Ananyev11Institute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, Russia“Ekon” Ltd, Obninsk 249037, Russia“Ekon” Ltd, Obninsk 249037, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaInstitute of High-Temperature Electrochemistry UB RAS, Yekaterinburg 620137, RussiaThe paper presents the results of an investigation into thin single- and triple-layer ZrO<sub>2</sub>-Sc<sub>2</sub>O<sub>3</sub>-based electrolytes prepared using the tape-casting technique in combination with promising electrodes based on La<sub>2</sub>NiO<sub>4+δ</sub> and Ni-Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2-δ</sub> 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∙cm<sup>2</sup> 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/cm<sup>2</sup> at 850 °C was obtained using wet hydrogen as fuel and air as an oxidizing gas.https://www.mdpi.com/1996-1073/13/5/1190thin-layer supporting electrolytetriple-layer electrolyteconductivitydrtsofc |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Denis A. Osinkin Ekaterina P. Antonova Alena S. Lesnichyova Evgeniy S. Tropin Mikhail E. Chernov Efim I. Chernov Andrey S. Farlenkov Anna V. Khodimchuk Vadim A. Eremin Anastasia I. Kovrova Anton V. Kuzmin Maxim V. Ananyev |
| spellingShingle |
Denis A. Osinkin Ekaterina P. Antonova Alena S. Lesnichyova Evgeniy S. Tropin Mikhail E. Chernov Efim I. Chernov Andrey S. Farlenkov Anna V. Khodimchuk Vadim A. Eremin Anastasia I. Kovrova Anton V. Kuzmin Maxim V. Ananyev Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells Energies thin-layer supporting electrolyte triple-layer electrolyte conductivity drt sofc |
| author_facet |
Denis A. Osinkin Ekaterina P. Antonova Alena S. Lesnichyova Evgeniy S. Tropin Mikhail E. Chernov Efim I. Chernov Andrey S. Farlenkov Anna V. Khodimchuk Vadim A. Eremin Anastasia I. Kovrova Anton V. Kuzmin Maxim V. Ananyev |
| author_sort |
Denis A. Osinkin |
| title |
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells |
| title_short |
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells |
| title_full |
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells |
| title_fullStr |
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells |
| title_full_unstemmed |
Application of Promising Electrode Materials in Contact with a Thin-Layer ZrO<sub>2</sub>-Based Supporting Electrolyte for Solid Oxide Fuel Cells |
| title_sort |
application of promising electrode materials in contact with a thin-layer zro<sub>2</sub>-based supporting electrolyte for solid oxide fuel cells |
| publisher |
MDPI AG |
| series |
Energies |
| issn |
1996-1073 |
| publishDate |
2020-03-01 |
| description |
The paper presents the results of an investigation into thin single- and triple-layer ZrO<sub>2</sub>-Sc<sub>2</sub>O<sub>3</sub>-based electrolytes prepared using the tape-casting technique in combination with promising electrodes based on La<sub>2</sub>NiO<sub>4+δ</sub> and Ni-Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>2-δ</sub> 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∙cm<sup>2</sup> 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/cm<sup>2</sup> at 850 °C was obtained using wet hydrogen as fuel and air as an oxidizing gas. |
| topic |
thin-layer supporting electrolyte triple-layer electrolyte conductivity drt sofc |
| url |
https://www.mdpi.com/1996-1073/13/5/1190 |
| work_keys_str_mv |
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| _version_ |
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