Preparation and Characterization of Cathode Supported Solid Oxide Fuel Cell

Authors

Xiao-nan BAO, School of Chemical Engineering and Technology, China University of Mining and Technology,Jiangsu 221116, Xuzhou, China;
Guang-jun ZHANG, School of Chemical Engineering and Technology, China University of Mining and Technology,Jiangsu 221116, Xuzhou, China;
Shao-rong WANG, School of Chemical Engineering and Technology, China University of Mining and Technology,Jiangsu 221116, Xuzhou, China;Follow

Corresponding Author

Shao-rong WANG(srwang@cumt.edu.cn)

Abstract

A site deficient (La_0.8Sr_0.2)_0.95MnO₃ (LSM95) powder was synthesized by solid state reaction as a cathode material. The commercial Zr_0.9Sc_0.1SO_1.95 (SSZ) was selected as an electrolyte material and La_0.8Sr_0.2Cr_0.5Mn_0.5O₃- (LSCrM) was synthesized by sol-gel method as an anode material. Accordingly, single cells of LSCrM-CeO₂|SSZ|3YSZ-LSM95 were prepared by tape casting, sintering and impregnation. The single cell test results for LSCrM-CeO₂|SSZ|3YSZ-LSM95 with 0.11 g·cm -2 CeO₂ and using CH₄ as a fuel showed the power densities of 1.68, 4.70, 12.4, 28.08 and 54.78 mW·cm -2 at 600, 650, 700, 750 and 800 oC, respectively. Durability test at the current density of 46.50 mA·cm -2 for over 130 h revealed that the cell degradation was owing to the decrease of open circuit voltage. The impregnated anode had good stability in performance. No carbon deposition was observed on the anode after the cell operation with CH₄. The as-synthesized LSM95 powder exhibited good chemical compatibility with zirconia electrolyte, making it possible to prepare cathode supported cells with co-sintering. Meanwhile, LSCrM could form the perovskite phase at 900 oC and obtain the similar thermal expansion coefficient to the cathode support and electrolyte, which is contributed to the stability of multi-layer structure in the cell. The successful preparation of the cathode supported cells with a simple method shall provide a good platform for the research of various new anode materials. With further optimization in the porosity of cathode support and introduction of more active cathode functional layer, the cell performance will be enhanced.

Graphical Abstract

Keywords

SOFC, cathode support, tape casting, impregnation, carbon tolerance

DOI Link

https://doi.org/10.13208/j.electrochem.191149

Publication Date

2020-04-28

Online Available Date

2020-04-28

Revised Date

2020-04-15

Received Date

2020-02-04

Recommended Citation

Xiao-nan BAO, Guang-jun ZHANG, Shao-rong WANG. Preparation and Characterization of Cathode Supported Solid Oxide Fuel Cell[J]. Journal of Electrochemistry, 2020 , 26(2): 190-197.
DOI: 10.13208/j.electrochem.191149
Available at: https://jelectrochem.xmu.edu.cn/journal/vol26/iss2/3

References

[1] Singhal S C . Advances in solid oxide fuel cell technology[J]. Solid State Ionics, 2000,135(1/4):305-313.

[2] Xiao J, Xie Y M, Liu J , et al. Deactivation of Ni-based anode in solid oxide fuel cells operated on carbon-containing fuels[J]. Journal of Power Sources, 2014,268:508-516.

[3] Gao K Q( 高克卿), Liu X T( 刘晓天), Zhao E Q( 赵二庆 ), et al. Analysis of the material factors in the degradation of SOFC performance[J]. Journal of Electrochemistry( 电化学), 2013,19(2):110-114.

[4] Atkinson A, Barnett S A, Gorte R J , et al. Advanced anodes for high-temperature fuel cells[J]. Nature Materials, 2004,3(1):17-27.

[5] Murray E P, Tsai T, Barnett, S A . A direct-methane fuel cell with a ceria-based anode[J]. Nature, 1999,400(6745):649-651.

[6] Cheng L( 程亮), Luo L H( 罗凌虹), Shi J J( 石纪军 ), et al. Ni/YSZ Anode Impregnated La₂O₃ on anti-carbon deposition of SOFC Cell[J]. Journal of Inorganic Materials( 无机材料学报), 2017,32(3):241-246.

[7] Meng X X( 孟秀霞), Gong X( 宫勋), Yang N T( 杨乃涛 ), et al. Preparation and properties of direct-methane solid oxide fuel cell based on a graded Cu-CeO₂-Ni-YSZ composite anode[J]. Acta Physico - Chimica Sinica( 物理化学学报), 2013,29(8):1719-1726.

[8] Gao Z( 高珠), Liu P X( 刘鹏翔), Su H L( 苏海兰 ), et al. Study on anti-carbon deposition of SOFC anode materials[J]. Industrial Catalysis( 工业催化), 2018,26(10):43-47.

[9] Zhang L L( 张磊磊), Li C( 李闯), Song Z Y( 宋昭远 ), et al. Review of SOFC anode with resistance to carbon deposition[J]. Journal of Liaoning University of Petroleum & Chemical Technology( 辽宁石油化工大学学报), 2015,35(6):11-19.

[10] Hua G X( 华桂祥 ). The preparation and performance of the electrode materials for symmetric solid oxide fuel cells[D]. Nanjing University of Science and Technology( 南京理工大学), 2017.

[11] Guo C L( 郭翠梨 ). Study on the catalytic performance of La-Ni-O catalysts for partial oxidation of methane[D]. Tianjin University( 天津大学), 2007.

[12] He B B( 贺贝贝 ). Fabrication and characterization of novel anode materials for intermediate temperature solid oxide fuel cells[D]. University of Science and Technology of China( 中国科学技术大学), 2012.

[13] Yi F Y, Li H, Chen H Y , et al. Preparation and characterization of La and Cr co-doped SrTiO₃ materials for SOFC anode[J]. Ceramics International, 2013,39(1):347-352.

[14] Yao J( 姚杰 ). Properties of SrTiO₃-based SOFC anode materials replaced by A and B bits[D]. Graduate School of Chinese Academy of Sciences( 中国科学院研究生院), 2011.

[15] Jiang Y, Virkar A V . Fuel composition and diluent effect on gas transport and performance of anode-supported SOFCs[J]. Journal of The Electrochemical Society, 2003,150(7):A942-A951.

[16] Xiong B( 熊保), Han M F( 韩敏芳) . Low temperature fabrication of cathode-supported tubular solid oxide fuel cell by co-fire process[C]// Seminar on Ceramic Shell Technology for Vacuum Electronic Materials, Ceramic-Metal Seal and Vacuum Switch Tubes( 真空电子材料、陶瓷-金属封接与真空开关管用陶瓷管壳技术研讨会), Beijing, 2011.

[17] Meng X X( 孟秀霞), Yang N T( 杨乃涛), Gong X( 宫勋) , et al. Microtubular solid oxide fuel cells supported by cathode via dual-Iayer co-extrusion and co-sintering technique[C]// National Solid State Ionic Conference and International Symposium on Next Generation Energy Materials and Technologies( 全国固态离子学学术会议暨下一代能源材料与技术国际研讨会), Chengdu, 2012.

[18] Tsai T, Barnett S A . Effect of LSM-YSZ cathode on thin-electrolyte solid oxide fuel cell performance[J]. Solid State Ionics, 1997,93(3/4):207-217.

[19] Zhao C . Fabrication and characterization of a cathode-supported tubular solid oxide fuel cell[J]. Journal of Power Sources, 2009,192(2):552-555.

[20] Cheng L( 程亮), Luo L H( 罗凌虹), Lin Y C( 林囿辰 ), et al. Effect of Ni/YSZ anode impregnation on CeO₂ and BaO on anti carbon deposition of SOFC[J]. Journal of Ceramics( 陶瓷学报), 2017,38(5):746-751.

[21] Liu M Q( 刘民全), Wang S R( 王绍荣) . Study on CuNi(alloy)-CeO₂ as a new anti-carbon anode material[C]// Solid State Ion Branch of China Silicate Society( 中国硅酸盐学会固态离子学分会), Proceedings of the 17th National Conference on Solid State Ion and International Symposium on New Energy Materials and Technologies, 2014.

[22] Wang F( 王芬), Chen H L( 陈绘丽 ). Synjournal and coking resistance of NiO/BaO/CeO₂ catalyst material for solid oxide fuel cell anode[J]. Journal of Shanxi University(Natural Science Edition)( 山西大学学报(自然科学版)), 2016,39(3):480-485.