Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte
In this study, the technology of electrophoretic deposition (EPD) micrometer barrier layers based on a BaCe<sub>0.8</sub>Sm<sub>0.19</sub>Cu<sub>0.1</sub>O<sub>3</sub> (BCSCuO) protonic conductor on dense carrying Ce<sub>0.8</sub>Sm<sub&...
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MDPI AG
2022-03-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/3/308 |
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| author | Elena Kalinina Kirill Shubin Elena Pikalova |
| author_facet | Elena Kalinina Kirill Shubin Elena Pikalova |
| author_sort | Elena Kalinina |
| collection | DOAJ |
| description | In this study, the technology of electrophoretic deposition (EPD) micrometer barrier layers based on a BaCe<sub>0.8</sub>Sm<sub>0.19</sub>Cu<sub>0.1</sub>O<sub>3</sub> (BCSCuO) protonic conductor on dense carrying Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> (SDC) solid-state electrolyte substrates is developed. Methods for creating conductive sublayers on non-conductive SDC substrates under EPD conditions, such as the synthesis of a conductive polypyrrole (PPy) layer and deposition of a layer of finely dispersed platinum from a suspension of its powder in isopropanol, are proposed. The kinetics of disaggregation, disperse composition, electrokinetic potential, and the effect of adding iodine to the BCSCuO suspension on these parameters as factors determining the preparation of stable suspensions and successful EPD processes are explored. Button cells based on a carrying SDC electrolyte of 550 μm in thickness with BCSCuO layers (8–35 μm) on the anode, cathode, and anode/cathode side, and Pt electrodes are electrochemically tested. It was found that the effect of blocking the electronic current in the SDC substrate under <i>OCV</i> conditions was maximal for the cells with barrier layers deposited on the anode side. The technology developed in this study can be used to fabricate solid oxide fuel cells with doped CeO<sub>2</sub> electrolyte membranes characterized by mixed ionic–electronic conductivity (MIEC) under reducing atmospheres. |
| first_indexed | 2024-03-09T13:22:12Z |
| format | Article |
| id | doaj.art-47d1113b3e2e4c00b66707a9c36e42c4 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T13:22:12Z |
| publishDate | 2022-03-01 |
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| record_format | Article |
| series | Membranes |
| spelling | doaj.art-47d1113b3e2e4c00b66707a9c36e42c42023-11-30T21:28:37ZengMDPI AGMembranes2077-03752022-03-0112330810.3390/membranes12030308Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State ElectrolyteElena Kalinina0Kirill Shubin1Elena Pikalova2Laboratory of Complex Electrophysic Investigations, Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, 620016 Yekaterinburg, RussiaLaboratory of Solid Oxide Fuel Cells, Institute of High Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, 620137 Yekaterinburg, RussiaLaboratory of Complex Electrophysic Investigations, Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, 620016 Yekaterinburg, RussiaIn this study, the technology of electrophoretic deposition (EPD) micrometer barrier layers based on a BaCe<sub>0.8</sub>Sm<sub>0.19</sub>Cu<sub>0.1</sub>O<sub>3</sub> (BCSCuO) protonic conductor on dense carrying Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> (SDC) solid-state electrolyte substrates is developed. Methods for creating conductive sublayers on non-conductive SDC substrates under EPD conditions, such as the synthesis of a conductive polypyrrole (PPy) layer and deposition of a layer of finely dispersed platinum from a suspension of its powder in isopropanol, are proposed. The kinetics of disaggregation, disperse composition, electrokinetic potential, and the effect of adding iodine to the BCSCuO suspension on these parameters as factors determining the preparation of stable suspensions and successful EPD processes are explored. Button cells based on a carrying SDC electrolyte of 550 μm in thickness with BCSCuO layers (8–35 μm) on the anode, cathode, and anode/cathode side, and Pt electrodes are electrochemically tested. It was found that the effect of blocking the electronic current in the SDC substrate under <i>OCV</i> conditions was maximal for the cells with barrier layers deposited on the anode side. The technology developed in this study can be used to fabricate solid oxide fuel cells with doped CeO<sub>2</sub> electrolyte membranes characterized by mixed ionic–electronic conductivity (MIEC) under reducing atmospheres.https://www.mdpi.com/2077-0375/12/3/308electrophoretic depositionMIEC electrolytebarrier layerdoped BaCeO<sub>3</sub>deposition kineticsconducting polymer |
| spellingShingle | Elena Kalinina Kirill Shubin Elena Pikalova Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte Membranes electrophoretic deposition MIEC electrolyte barrier layer doped BaCeO<sub>3</sub> deposition kinetics conducting polymer |
| title | Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte |
| title_full | Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte |
| title_fullStr | Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte |
| title_full_unstemmed | Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte |
| title_short | Electrophoretic Deposition and Characterization of the Doped BaCeO<sub>3</sub> Barrier Layers on a Supporting Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> Solid-State Electrolyte |
| title_sort | electrophoretic deposition and characterization of the doped baceo sub 3 sub barrier layers on a supporting ce sub 0 8 sub sm sub 0 2 sub o sub 1 9 sub solid state electrolyte |
| topic | electrophoretic deposition MIEC electrolyte barrier layer doped BaCeO<sub>3</sub> deposition kinetics conducting polymer |
| url | https://www.mdpi.com/2077-0375/12/3/308 |
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