| Project/Area Number |
21560800
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Kyoto University |
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Principal Investigator |
KOYANAKA Hideki 京都大学, 物質-細胞統合システム拠点, 准教授 (40248620)
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| Co-Investigator(Kenkyū-buntansha) |
TSUJIMOTO Masahiko 京都大学, 物質-細胞統合システム拠点, WPI研究員 (40437265)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 触媒・化学プロセス / 合成化学 / 地球温暖化ガス排出削減 / ナノ二酸化マンガン / 水熱合成法 / 水酸化物イオン / 酸素 / 電気発生 / 水素センサ / 人工光合成 |
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| Research Abstract |
The capability of water splitting of a catalyst made of manganese dioxide, was determined. The manganese dioxide catalyst splits water into proton, electron, and oxygen, like chloroplast of plants. This property of the catalyst is different from that of conventional photo-catalysts which split water into hydrogen and oxygen.
The novel proton conductivity of a high-purity, ramsdellite-crystal type manganese dioxide was confirmed, and a hydrogen gas sensor that enabled in-situ measurements of hydrogen gas concentration over a wide range of 0. 1?99. 9% at room temperature, by using a electrolyte made of the ramsdellite-crystal type manganese dioxide, was developed.
Synthesis methods of the high-purity, ramsdellite-crystal type manganese dioxide were developed.
The moderate reduction ability of the ramsdellite-crystal type manganese dioxide to convert carbon dioxide into several organic acids in water, was discovered.
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