| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
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| Outline of Final Research Achievements |
To achieve a carbon neutral society, CO2-free hydrogen production using solar energy has gained attention. If chemical products with applications in the health and food industries could be produced at the same time as hydrogen through photocatalyst-mediated solar water-splitting, it would be possible to develop solar energy conversion systems with even greater added value. In this study, we demonstrate efficient and selective production of hydrogen peroxide using photoelectrodes prepared with metal-doped hematite mesocrystals under simulated sunlight illumination. The composite oxide cocatalyst formed via segregation of tin and titanium ions doped in hematite was found to be the key to improving the efficiency and selectivity of the surface oxidation reaction.
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