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Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF)/Gd0.2Ce0.8O1.9 (GDC) dual-gradient cathodes for solid oxide fuel cells (SOFCs) were prepared via a spraying-sintering route, using corn starch as a pore-forming agent. The X-ray diffraction (XRD) analysis results revealed that the BSCF and GDC showed good chemical compatibility even at 1200°C. The scanning electron microscopy (SEM) results indicated that a graded pore...
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