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Preparation and Properties of Bi1-xCaxFeO3-δ Cathode Materials for Intermediate-Temperature Solid Oxide Fuel Cell
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Weiwei FENG, Huifen ZHAO, Muyi SHEN, Han CHEN, Lucun GUO
Journal of the Chinese Ceramic Society | 2022, 50(5) : 1248 - 1256
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Journal of the Chinese Ceramic Society | 2022, 50(5): 1248-1256
• Research Articles •
Preparation and Properties of Bi1-xCaxFeO3-δ Cathode Materials for Intermediate-Temperature Solid Oxide Fuel Cell
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Weiwei FENG, Huifen ZHAO, Muyi SHEN, Han CHEN, Lucun GUO
Affiliations
  • Nanjing Tech University, College of Materials Science and Engineering, Nanjing, 211816, China

    • FENG Weiwei (1995-), male, Master candidate. E-mail:

About Author:

FENG Weiwei (1995-), male, Master candidate. E-mail:

Published: 2022-05-20 doi: 10.14062/j.issn.0454-5648.20210743
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Developing cathode materials with superior electrochemical activity is of great importance to the application of intermediate-temperature solid oxide fuel cell (IT-SOFC). In this paper, Bi1-xCaxFeO3-δ (BCFx, x=0.1, 0.2 and 0.3) compounds were synthesized via solid-state reaction as a cathode material for IT-SOFC. The phase structure, electrical conductivity, oxygen transport performance, and the electrochemical performances of these compounds were evaluated. The as-prepared BCFx compounds show a single-phase perovskite structure. Among the BCFx materials, Bi0.8Ca0.2FeO3-δ (BCF0.2) oxide has the maximum electrochemical catalytic activity. The polarization resistance of BCF0.2 cathode on symmetrical cell is 0.06 Ω·cm2 at 750 ℃ in air. Meanwhile, the maximum peak power density of Ni-(Y2O3)0.08(ZrO2)0.92(Ni-8YSZ) anode-supported single cell reaches 730 mW·cm2 at 750 ℃. As is indicated by the electrical conductivity relaxation, the favorable oxygen reduction reaction catalytic activity of BCF0.2 can be ascribed to the higher oxygen bulk diffusion and surface exchange coefficient. The results of oxygen reduction kinetics reveal that the dissociation of adsorbed molecular oxygen is a limiting step for oxygen reduction reaction on BCF0.2 cathode.

solid oxide fuel cell  /  cathode  /  electrical conductivity relaxation  /  electrochemical performance
冯伟伟, 赵慧粉, 沈睦夷, 陈涵, 郭露村. 中温固体氧化物燃料电池阴极材料Bi1-xCaxFeO3-δ的制备及其性能. 硅酸盐学报, 2022 , 50 (5) : 1248 -1256 . DOI: 10.14062/j.issn.0454-5648.20210743
Weiwei FENG, Huifen ZHAO, Muyi SHEN, Han CHEN, Lucun GUO. Preparation and Properties of Bi1-xCaxFeO3-δ Cathode Materials for Intermediate-Temperature Solid Oxide Fuel Cell[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (5) : 1248 -1256 . DOI: 10.14062/j.issn.0454-5648.20210743
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Year 2022 volume 50 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20210743
  • Receive Date：2021-08-30
  • Online Date：2026-10-22
  • Published：2022-05-20
Article Data
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History
  • Received：2021-08-30
  • Revised：2021-10-17
Funding
Affiliations
    Nanjing Tech University, College of Materials Science and Engineering, Nanjing, 211816, China

Corresponding:

GUO Lucun (1957-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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