Synthesis of La1-XSrXMnO3 Powder and Its Power Generation Property

In order to raise the power generation efficiency on a fuel cell, a perovskite type oxide powder was prepared using metal acetate. The synthesis was carried out at compositions between X=0.1 and 0.4 in La1-XSrXMnO3. The average size of primary particles was 0.1μm. La1-XSrXMnO3 (X=0.1, 0.2, 0.3, 0.4) were rhombohedral phases. The composition with X=0.3 showed the highest power generation activity. It was assumed that the power generation efficiency was raised by increase in the amount of oxygen vacancies and by improvement of p-type semiconductor characteristics.