Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells
To develop a cathode with excellent oxygen reduction reaction (ORR) activity and durability at intermediate-to-low temperatures is significant to boost the advancement of solid oxide fuel cells (SOFCs), a fascinating energy conversion technology with low emissions and high efficiency. Perovskite oxi...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/160426 |
| _version_ | 1811688751163768832 |
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| author | Liang, Mingzhuang He, Fan Zhou, Chuan Chen, Yubo Ran, Ran Yang, Guangming Zhou, Wei Shao, Zongping |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Liang, Mingzhuang He, Fan Zhou, Chuan Chen, Yubo Ran, Ran Yang, Guangming Zhou, Wei Shao, Zongping |
| author_sort | Liang, Mingzhuang |
| collection | NTU |
| description | To develop a cathode with excellent oxygen reduction reaction (ORR) activity and durability at intermediate-to-low temperatures is significant to boost the advancement of solid oxide fuel cells (SOFCs), a fascinating energy conversion technology with low emissions and high efficiency. Perovskite oxides have been extensively developed as cathodes, and doping is an important strategy to alter the lattice diffusion and surface exchange properties of perovskites, to tailor catalytic performances for various redox reactions, including ORR for SOFCs. The reported BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) is a promising cathode for SOFCs. Herein, to further improve the performance of BCFZY at reduced temperatures, we systematically investigate the partial doping of B-sites with different metal elements, including Mn, Ni, Cu and Zn at a fixed content of 5%. Among them, it is found that Ba(Co0.4Fe0.4Zr0.1Y0.1)0.95Ni0.05O3-δ (BCFZYN) exhibits the lowest polarization impedance in both oxygen ion and proton conducting fuel cells. Based on conductivity relaxation experiments and oxygen and hydrogen permeation tests, it is found that nickel doping improves oxygen mobility, surface exchange kinetics, and bulk oxygen ion and proton conductivity. Thereby, a high ORR activity on oxygen ion and proton conducting electrolytes is achieved, reaching 0.038 and 0.607 Ω cm2 at 550 °C, respectively. The cells with the BCFZYN electrode show outstanding operational stability (200 h of operation in a symmetrical cell and 1000 h of operation in a single cell). This suggests that the BCFZYN is a promising cathode of next-generation SOFCs. |
| first_indexed | 2024-10-01T05:37:11Z |
| format | Journal Article |
| id | ntu-10356/160426 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:37:11Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1604262022-07-22T01:50:33Z Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells Liang, Mingzhuang He, Fan Zhou, Chuan Chen, Yubo Ran, Ran Yang, Guangming Zhou, Wei Shao, Zongping School of Materials Science and Engineering Engineering::Chemical engineering Solid Oxide Fuel Cell Perovskite To develop a cathode with excellent oxygen reduction reaction (ORR) activity and durability at intermediate-to-low temperatures is significant to boost the advancement of solid oxide fuel cells (SOFCs), a fascinating energy conversion technology with low emissions and high efficiency. Perovskite oxides have been extensively developed as cathodes, and doping is an important strategy to alter the lattice diffusion and surface exchange properties of perovskites, to tailor catalytic performances for various redox reactions, including ORR for SOFCs. The reported BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) is a promising cathode for SOFCs. Herein, to further improve the performance of BCFZY at reduced temperatures, we systematically investigate the partial doping of B-sites with different metal elements, including Mn, Ni, Cu and Zn at a fixed content of 5%. Among them, it is found that Ba(Co0.4Fe0.4Zr0.1Y0.1)0.95Ni0.05O3-δ (BCFZYN) exhibits the lowest polarization impedance in both oxygen ion and proton conducting fuel cells. Based on conductivity relaxation experiments and oxygen and hydrogen permeation tests, it is found that nickel doping improves oxygen mobility, surface exchange kinetics, and bulk oxygen ion and proton conductivity. Thereby, a high ORR activity on oxygen ion and proton conducting electrolytes is achieved, reaching 0.038 and 0.607 Ω cm2 at 550 °C, respectively. The cells with the BCFZYN electrode show outstanding operational stability (200 h of operation in a symmetrical cell and 1000 h of operation in a single cell). This suggests that the BCFZYN is a promising cathode of next-generation SOFCs. This work was financially supported by National Science Foundation of China (No. 21706129, 21878158) , China Postdoctoral Science Foundation (No. 2018M642236) , Jiangsu Postdoctoral Science Foundation, and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) . 2022-07-22T01:50:32Z 2022-07-22T01:50:32Z 2021 Journal Article Liang, M., He, F., Zhou, C., Chen, Y., Ran, R., Yang, G., Zhou, W. & Shao, Z. (2021). Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells. Chemical Engineering Journal, 420(Part 2), 127717-. https://dx.doi.org/10.1016/j.cej.2020.127717 1385-8947 https://hdl.handle.net/10356/160426 10.1016/j.cej.2020.127717 2-s2.0-85096909610 Part 2 420 127717 en Chemical Engineering Journal © 2020 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering Solid Oxide Fuel Cell Perovskite Liang, Mingzhuang He, Fan Zhou, Chuan Chen, Yubo Ran, Ran Yang, Guangming Zhou, Wei Shao, Zongping Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title | Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title_full | Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title_fullStr | Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title_full_unstemmed | Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title_short | Nickel-doped BaCo₀.₄Fe₀.₄Zr₀.₁Y₀.₁O₃₋δ as a new high-performance cathode for both oxygen-ion and proton conducting fuel cells |
| title_sort | nickel doped baco₀ ₄fe₀ ₄zr₀ ₁y₀ ₁o₃₋δ as a new high performance cathode for both oxygen ion and proton conducting fuel cells |
| topic | Engineering::Chemical engineering Solid Oxide Fuel Cell Perovskite |
| url | https://hdl.handle.net/10356/160426 |
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