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A new family of doped cerias with formula Ce 1−x Fe x O 2−δ (x=0.1, 0.2) have been investigated as anode material for SOFCs. Ce 1−x Fe x O 2−δ was synthesized by the citrate method. The electrochemical behavior of anode was analyzed by electrochemical impedance spectroscopy. Ce 1−x Fe x O 2−δ (x=0.1, 0.2) exhibit high activities...
Crystal structure, thermal expansion coefficient, electrical conductivity and cathodic polarization of compositions in the system Sm 0.5 Sr 0.5 Co 1−x Fe x O 3−δ with 0≤x≤0.9 were studied as function of Co/Fe ratio and temperature, in air. Two phases, including an Orthorhombic symmetry for 0≤x≤0.4 and a cubic symmetry for 0.5≤x≤0.9, were observed in samples...
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