Abstract:This study reports the effect of vanadium on the crystal structure and electrical and electrochemical properties of La 0.6−x V x Sr 0.4 MnO 3−δ (x = 0.005-0.1) perovskite-based cathode materials in solid oxide fuel cells. Crystal structure, morphology, and porosity of prepared cathode materials are characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. Using XPS analysis it was established that the La 3+ cation is exchanged by the V 4+/5+ cation in the per… Show more
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