Evaluation of La sub(0.4)Ba sub(0.6)Fe sub(0.8)Zn sub(0.2)O sub(3- delta ) + Sm sub(0.2)Ce sub(0.8)O sub(1.9) as a potential cobalt-free composite cathode for intermediate temperature solid oxide fuel cells

• Published in: Journal of power sources Vol. 275; pp. 808 - 814
• Main Authors: Bu, Yun-fei, Ding, Dong, Lai, Samson Yuxiu, Chen, Dong-Chang, Xiong, Xun-Hui, Wei, Tao, Zhong, Qin
• Format: Journal Article
• Language: English
• Published: 01.02.2015
• Subjects: Carbon dioxide; Cathodes; Correlation; Density; Electrodes; Oxides; Solid oxide fuel cells; Tolerances; Yttria stabilized zirconia

The disadvantages of cobalt-based and barium-based perovskite oxides in solid oxide fuel cells are the large thermal expansion coefficients, low structure stability, and poor CO sub(2) tolerance, although they have excellent oxygen reduction activity. To reduce the impact of these detrimental effect...