Characterization and Comparison of Different Cathode Materials for SC-SOFC: LSM, BSCF, SSC, and LSCFReport as inadecuate




Characterization and Comparison of Different Cathode Materials for SC-SOFC: LSM, BSCF, SSC, and LSCF - Download this document for free, or read online. Document in PDF available to download.

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels 2 PRESSIC-ENSMSE - Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs 3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires 4 LICB - Laboratoire Interdisciplinaire Carnot de Bourgogne

Abstract : Four cathode materials for single chamber solid oxide fuel cell SC-SOFC La0.8Sr0.2MnO3-δ LSM, Ba0.5Sr0.5Co0.8Fe0.2O3-δ BSCF, Sm0.5Sr0.5CoO3-δ SSC, and La0.6Sr0.4Co0.2Fe0.8O3-δ LSCF were investigated regarding their chemical stability, electrical conductivity, catalytic activity, and polarization resistance under air and methane-air atmosphere. Electrolyte-supported fuel cells, with Ce0.9Gd0.1O2-δ CGO electrolyte and a Ni-CGO anode, were tested in several methane-air mixtures with each cathode materials between 625 and 725 °C. These single cells were not optimized but only designed to compare the four studied cathodes. The decrease of methane-to-oxygen ratio from 2 to 0.67 strongly increased the performance of fuel cells for all cathode materials but the effect of temperature was not always significant. Cells with SSC, BSCF, and LSCF have shown a maximum power density about 20 mW cm-2 while the cell with LSM has given only 5 mW cm-2.

Keywords : BSCF Cathode Materials LSCF LSM Single Chamber Solid Oxide Fuel Cell SSC





Author: Damien Rembelski - Jean-Paul Viricelle - Mathilde Rieu - Lionel Combemale -

Source: https://hal.archives-ouvertes.fr/



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