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Performance and Optimization of Cobalt-free Double Perovskite Cathode SmBaFeNiO5+δ for Intermediate-temperature Solid Oxide Fuel Cells
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Dawei FU1, Fangjun JIN2, Tianmin HE1
Journal of the Chinese Ceramic Society | 2021, 49(1) : 34 - 41
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Journal of the Chinese Ceramic Society | 2021, 49(1): 34-41
• Special Issue on SOFC •
Performance and Optimization of Cobalt-free Double Perovskite Cathode SmBaFeNiO5+δ for Intermediate-temperature Solid Oxide Fuel Cells
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Dawei FU1, Fangjun JIN2, Tianmin HE1
Affiliations
  • 1.Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Changchun 130012, China
  • 2.School of Science, Changchun University of Science and Technology, Changchun 130022, China

    • FU Dawei (1976-), male, Ph.D., Associate Professor. E-mail:

About Author:

FU Dawei (1976-), male, Ph.D., Associate Professor. E-mail:

Published: 2021-01-20 doi: 10.14062/j.issn.0454-5648.20200428
Outline
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A cobalt-free double-perovskite cathode SmBaFeNiO5+δ (SBFN) was synthesized by a modified sol-gel process, and SmBaFeNiO5+δ-Sm0.2Ce0.8O1.9 (SBFN-SDC) composite cathodes were applied to reduce the thermal expansion coefficient (TEC) and improve the electrochemical performance. The average TEC of SBFN is 14.1×10-6K-1 in air at 30-900℃, while the SBFN-SDC15 (the mass ratio is 85∶15) composite cathode shows the lowest average TEC of 12.0×10-6K-1. The maximum conductivity of SBFN is 48 S/cm at 425℃. The polarization resistance (Rp) of SBFN is 0.386 Ω·cm2 at 700℃ on SDC electrolyte. Introducing SDC to SBFN can increase the electrochemical catalytic activity of the cathode materials. SBFN-SDC10 (the mass ratio is 90∶10) composite cathode has the lowest Rp, which is 0.224 Ω·cm2 at 700℃. The maximum power densities of Ni-SDC|SDC|SBFN and Ni-SDC|SDC|SBFN-SDC10 single cells are 367.6 mW/cm2 and 507.8 mW/cm2 at 800℃, respectively.

solid oxide fuel cells  /  double perovskite  /  cobalt-free cathode  /  thermal expansion coefficient
付大伟, 金芳军, 贺天民. 无Co双钙钛矿结构中温固体氧化物燃料电池阴极材料SmBaFeNiO5+δ及其性能优化. 硅酸盐学报, 2021 , 49 (1) : 34 -41 . DOI: 10.14062/j.issn.0454-5648.20200428
Dawei FU, Fangjun JIN, Tianmin HE. Performance and Optimization of Cobalt-free Double Perovskite Cathode SmBaFeNiO5+δ for Intermediate-temperature Solid Oxide Fuel Cells[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (1) : 34 -41 . DOI: 10.14062/j.issn.0454-5648.20200428
Appendix
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Year 2021 volume 49 Issue 1
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Article Info
doi: 10.14062/j.issn.0454-5648.20200428
  • Receive Date：2020-06-18
  • Online Date：2026-10-30
  • Published：2021-01-20
Article Data
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History
  • Received：2020-06-18
  • Revised：2020-08-16
Funding
Affiliations
    1.Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Changchun 130012, China
    2.School of Science, Changchun University of Science and Technology, Changchun 130022, China

Corresponding:

HE Tianmin (1964-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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