2013 Fiscal Year Final Research Report
Nano-materials Design for High Performance Metal-Air Batteries
| Project/Area Number |
24760731
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Energy engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
YUASA Masayoshi 九州大学, 総合理工学研究科(研究院), 助教 (50404075)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 電池 / 酸素還元 / 触媒 / ペロブスカイト型酸化物 / ナノ粒子 |
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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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