| Budget Amount *help |
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2016: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
Particulate photocatalyst sheets showing one of the highest solar-to-hydrogen energy conversion efficiencies among particulate photocatalyst systems via the two-step excitation overall water splitting reaction were developed by fixing hydrogen evolution photocatalysts and oxygen evolution photocatalysts onto conductive layers. Through various analyses, it was revealed that combining photocatalysts and conductive materials that yielded superior performance as photoelectrodes and suppressing backward reactions occurring on the conductive layer were essential for the improvement of the water splitting activity of photocatalyst sheets. Moreover, it became possible to split water by using photocatalytic materials that could utilize visible light up to 600 nm alone by applying surface-modified particulate photocatalysts to the photocatalyst sheet system.
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