A Comparative Study on Electrochemical Behavior of (La,Sr)FeO₃ and (La,Sr)FeO₃-(La,Sr)MnO₃ Anodes for Solid Oxide Electrolysis Cells

Abstract:

La0.8Sr0.2FeO3 electrodes modified with nanoparticles of La0.8Sr0.2MnO3 (LSF/LSM) were prepared by infiltration method. LSM solution had good wettability on LSF surfaces and good electrochemical compatibility with LSF. The impedance of half-cells incorporating the electrodes was also examined. The deconvolution of the impedance spectrum indicated that the peak positions are changed after the LSF infiltration. The LSF/LSM electrode exhibited smaller polarization resistance than pure LSF electrode. Finally, a transform from asymmetry to symmetry appeared in the polarization curves of LSF/LSM electrode with the increase of temperature.

• Periodical: Applied Mechanics and Materials (Volume 302)
• Pages: 128-135
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.302.128
• Online since: February 2013
• Authors: Jing Wang, Yong Zhang, Wen Li Guo, Tong Xiang Liang, Chang Sheng Deng, Jing Ming Xu
• Keywords: Impedance, Infiltration, Nanoparticle, Polarization Resistance

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