固-溶法制备中温固体氧化物燃料电池高性能La0.8Sr0.2MnO3-Ba0.5Sr0.5Co0.8Fe0.2O3阴极

doi:10.1016/S1872-2067(12)60704-9

催化学报 ›› 2014, Vol. 35 ›› Issue (1): 38-42.DOI: 10.1016/S1872-2067(12)60704-9

固-溶法制备中温固体氧化物燃料电池高性能La_0.8Sr_0.2MnO₃-Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃阴极

孟丽, 王方中, 王傲, 蒲健, 池波, 李箭

华中科技大学材料科学与工程学院材料成型与模具技术国家重点实验室燃料电池研究中心, 湖北武汉 430074

收稿日期:2013-08-05 修回日期:2013-09-02 出版日期:2013-12-23 发布日期:2014-01-17
通讯作者: 李箭
基金资助:
国家自然科学基金（U1134001）

High performance La_0.8Sr_0.2MnO₃-coated Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃ cathode prepared by a novel solid-solution method for intermediate temperature solid oxide fuel cells

Li Meng, Fangzhong Wang, Ao Wang, Jian Pu, Bo Chi, Jian Li

Center for Fuel Cell Innovation, State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China

Received:2013-08-05 Revised:2013-09-02 Online:2013-12-23 Published:2014-01-17
Contact: Jian Li
Supported by:
This work was supported by the National Natural Science Foundation of China (U1134001).

摘要/Abstract

摘要：

研究了新型固溶法合成La_0.8Sr_0.2MnO₃（LSM）包覆Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃（BSCF）复合粉体（LSM-BSCF），并探讨了其作为中温固体氧化物燃料电池阴极材料的电化学性能。LSM-BSCF阴极结合了LSM和BSCF阴极的优点，不仅增大了三相界面，而且稳定了微观结构。当温度为600-750℃时，其极化阻抗为0.61-0.09 Ω·cm²。与溶液注入法制备的高性能电极相比，极大地提高了性能稳定性。

关键词: 固体氧化物燃料电池, 中温, La_0.8Sr_0.2MnO₃-Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃复合阴极, 极化电阻, 性能稳定性

Abstract:

La_0.8Sr_0.2MnO₃ (LSM)-coated Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃ (BSCF) composite powder (LSM-BSCF) was synthesized by a novel solid-solution method and investigated electrochemically as a cathode material for intermediate temperature solid oxide fuel cells. The cathode combined the merits of LSM and BSCF cathodes through an extended triple phase boundary and stabilized microstructure and demonstrated a polarization resistance between 0.61 and 0.09 Ω cm² at 600 to 750℃. Compared with high performance cathodes prepared by solution impregnation, this LSM-BSCF cathode greatly improved performance stability.

Key words: Solid oxide fuel cell, Intermediate temperature, La_0.8Sr_0.2MnO₃-Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃ composite cathode, Polarization resistance, Performance stability

孟丽, 王方中, 王傲, 蒲健, 池波, 李箭. 固-溶法制备中温固体氧化物燃料电池高性能La_0.8Sr_0.2MnO₃-Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃阴极[J]. 催化学报, 2014, 35(1): 38-42.

Li Meng, Fangzhong Wang, Ao Wang, Jian Pu, Bo Chi, Jian Li. High performance La_0.8Sr_0.2MnO₃-coated Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃ cathode prepared by a novel solid-solution method for intermediate temperature solid oxide fuel cells[J]. Chinese Journal of Catalysis, 2014, 35(1): 38-42.

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固-溶法制备中温固体氧化物燃料电池高性能La_0.8Sr_0.2MnO₃-Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃阴极

High performance La_0.8Sr_0.2MnO₃-coated Ba_0.5Sr_0.5Co_0.8Fe_0.2O₃ cathode prepared by a novel solid-solution method for intermediate temperature solid oxide fuel cells

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