Budget Amount *help |
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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Outline of Final Research Achievements |
Gas phase photocatalysis over nanostructured semiconductor surfaces and its application toward artificial photosynthesis such as hydrogen production and CO2 photoreduction were investigated. Firstly, Composites of anodized hematite (α-Fe2O3) nanotube (FNT) arrays and Cu2O nanoparticles (CNPs) were fabricated using all-electrochemical processes. Hydrogen production from gas phase photocatalytic decomposition of water/methanol mixture over the composite of FNT and CNP was clearly confirmed under visible light irradiation, suggesting that H2 production observed for FNT/CNP can be attributed to Z-scheme mechanism. In addition, gas-phase photocatalysis over composites of anodized TiO2 oxide nanotube arrays and CNPs was examined in high vacuum. The observation results indicate that electrodeposited CNPs can work as noble-metal-free co-catalyst for gas phase photocatalysis based on nanostructured oxide semiconductors.
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