High performance of La0.6Sr0.4Co0.2Fe0.8O3–Ce0.9Gd0.1O1.95 nanoparticulate cathode for intermediate temperature microtubular solid oxide fuel cells
作者： Hirofumi Sumi , Toshiaki Yamaguchi , Koichi Hamamoto , Toshio Suzuki , Yoshinobu Fujishiro
DOI: 10.1016/J.JPOWSOUR.2012.11.015
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摘要: Abstract The perovskite La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 –Ce 0.9 Gd 0.1 1.95 (LSCF–GDC) nanoparticulate cathode was applied for microtubular solid oxide fuel cells operated at intermediate temperatures. For the cell with sintered 950 °C, maximum power densities of 0.26, 0.54 and 0.73 W cm −2 were obtained 550, 600 650 °C, respectively. ohmic resistance increased 850 °C, polarization 1050 °C. resistances ionic conduction process in LSCF bulk adsorption/desorption on surface estimated by distribution relaxation times analysis, which only 0.066 0.065 Ω cm 2 600 °C 950 °C. grain size less than 100 nm, resulted high performance due to an overall decrease resistance.
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