Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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Outline of Final Research Achievements |
As a method to introduce structural distortion into Mn oxides, we have studied gamma-type MnO2, which has a microtwinning structure and allows precise control of structural distortion. As a result, it was confirmed that the disproportionation reaction of Mn3+ is suppressed with the introduction of structural distortion, and the overpotential of oxygen evolution is reduced. By optimizing the electrolysis conditions taking into account the potential dependence of the disproportionation reaction, we found that the MnO2 catalyst can stably electrolyze water even in a strong acid environment.
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