| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Outline of Final Research Achievements |
In this study, we investigated the effect of strain on the crystal lattice of oxide catalysts on the catalytic activity of cobalt oxides, which are known as oxygen evolution catalysts for alkaline water electrolysis. Cobalt oxide nano-thin films were formed on Pt and Ir single crystal substrates by arc plasma deposition, and their microstructures and electrochemical oxygen evolution electrocatalytic activity were evaluated. The electrocatalytic properties and structural stability of the nano-thin films were highly dependent on the deposited metal substrate elements and were particularly high on Ir substrates. These results suggest that lattice strain due to lattice mismatch between substrate and catalyst layer affects the catalytic properties.
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