| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
In order to improve the electrode potential for the oxygen reduction reaction of air electrode, the effect of the composition of La-Mn based perovskite-type oxides on the oxygen reduction activity and the effect of the doubly loading of LaMnO3 and Pt on the carbon-support were investigated. As the result of substituting Ca and Fe for LaMnO3 nanoparticles, the optimum oxygen reduction activity was obtained at Ca=0.4 and Fe=0.1 because the valence state of B-sipe in the perovskite-type oxide was well optimized. The doubly loading of LaMnO3 and Pt on the carbon-support revealed that Pt is effective to improve the on-set potential for the oxygen reduction reaction, and that LaMnO3 is effective to reduce the overpotential for oxygen reduction reaction.
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