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Flame Spray Synthesis of Nanoscale La<sub>0.6</sub>Sr<sub>0.4</sub>Co<sub>0.2</sub>Fe<sub>0.8</sub>O<sub>3–δ</sub> and Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3–δ</sub> as Cathode Materials for Intermediate Temperature Solid Oxide Fuel Cells
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Citations
53
References
2010
Year
Materials ScienceOxygen Reduction ReactionChemical EngineeringEngineeringFlame Spray SynthesisOxidation ResistanceOxygen Exchange KineticCarbonate FormationNanomanufacturingSurface ElectrochemistryCo 2Fuel ScienceCathode MaterialsChemistryElectrochemical ProcessElectrochemistryHeterogeneous Combustion
Abstract Electrochemical performance and degradation was analysed by conductivity measurements as well as thermogravimetric analysis (TGA) under different atmospheres. CO 2 was identified as a critical parameter in terms of carbonate formation from Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3–δ and causes a strong increase in the material resistivity, whereas La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3–δ is unaffected. The oxygen exchange kinetic of both compositions is affected by CO 2 containing atmospheres.
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