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Lowering the sintering temperature of cathode material for intermediate temperature solid oxide fuel cell (IT-SOFC) is the main concern of current research. In the present work, well-known La 0.9 Sr 0.1 MnO 3  system as cathode for IT-SOFC was prepared by using mechanochemical synthesis by varying the grinding time. The pure phase La 0.9 Sr 0.1 MnO 3  forms after dry milling at 24 h with 500 rpm. X-ray diffraction confirms single crystalline rhombohedral phase of as-synthesized and sintered La 0.9 Sr 0.1 MnO 3 . Sintering at 700 °C improves the degree of crystallinity. Scanning electron microscope images of as-synthesized samples reveal highly agglomerate fine-scale grains. The temperature dependence of DC conductivity curve exhibits linear dependence of conductivity with temperature.

Effect of varying milling time on the formation of La 0.9 Sr 0.1 MnO 3 for IT-SOFC