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Three perovskites with the general formula La 0.75 Ba x Sr 0.25−x Cr 0.5 Mn 0.5 O 3 (x = 0, 0.10 and 0.25) have been synthesized. For all materials, the symmetry is rhombohedral (space group R-3c). On the electrical point of view, a p-type semiconducting behaviour was evidenced in the series. The addition of barium yields an increase in total conductivity...
The perovskite La 0.75 Sr 0.25 Cr 0.5 Mn 0.3 Ni 0.2 O 3−δ (LSCMMn 0.30 Ni 0.20 ) was evaluated as potential electrode for solid oxide fuel cells. The electrochemical performances of LSCMMn 0.30 Ni 0.20 for hydrogen oxidation and oxygen reduction reactions were studied at 800°C. Symmetrical cells LSCMMn 0.30 Ni...
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