On the simultaneous use of La0.75Sr0.25Cr0.5Mn0.5O3−δ as both anode and cathode material with improved microstructure in solid oxide fuel cells |
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| Authors: | Juan Carlos Ruiz-Morales,Juan Peñ a-Martí nez,Pedro Nú ñ ez |
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| Affiliation: | a Dpto. Química Inorgánica, Universidad de La Laguna, Avda. Francisco Sánchez s/n, 38200 Tenerife, Canary Islands, Spain
b Instituto de Ciencia de los Materiales de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain |
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| Abstract: | A new concept of a solid oxide fuel cell (SOFC) using simultaneously the same electrode material at the anode and cathode sides with improved microstructure is proposed. We have found that La0.75Sr0.25Cr0.5Mn0.5O3−δ (LSCM) can be considered as a good candidate for such configuration, symmetrical fuel cells (SFCs), due to its enhanced electrochemical properties in both reducing and oxidising conditions. LSCM-based SFCs offer promising performances, e.g., 0.5 and 0.3 W cm−2 at 950 °C using H2 and CH4, respectively as fuels. Finally, the optimisation of the microstructure has been achieved via a novel facile procedure, using poly(methyl methacrylate) PMMA microspheres as templates. |
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| Keywords: | Symmetrical fuel cell Solid oxide fuel cell Symmetrical electrodes LSCM Cathode PMMA microspheres |
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