| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Pd/TiO2 was the most active for high-pressure CO2 photoconversion into fuels. While using CO2 + H2, the total photogeneration rates of C-containing products were maximum at CO2 pressure of 0.12 MPa and H2 pressure of 0.28 MPa, using CO2 + moisture the generation rates followed the Langmuir-type rate dependence and the reaction order of methane formation was 0.39. Competitive adsorption occurred under former condition in contrast that sites were effective separated for photo-oxidation of water (TiO2, etc) and photo-reduction of CO2 (Pd, etc) under latter condition.
Associated with this, solar cell for use of photocatalysts on both electrodes and water as a medium was investigated. When the cathode (e.g. BiOCl) was irradiated from back side, leakage currents were suppressed and the open-circuit voltage was increased to 1.91 V per cell.
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