| Project/Area Number |
15H04187
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 |
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Tsunehiro 京都大学, 大学院工学研究科, 教授 (70201621)
HOSOKAWA Saburo 京都大学, 実験と理論計算科学のインタープレイによる触媒・電池の元素戦略研究拠点ユニット, 特定准教授 (90456806)
SAKATA Yoshihisa 山口大学, 理工学研究科, 教授 (40211263)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2015: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Keywords | 二酸化炭素 / 水 / 酸化ガリウム / 銀 / 人工光合成 / CO2の光還元 / 電子源としてのH2O / 赤外吸収スペクトル / Agナノ粒子 / 光還元 / 光触媒 / CO2光還元 / H2O / Ag / Ga2O3 |
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| Outline of Final Research Achievements |
We succeeded in designing a highly selective photocatalytic conversion of CO2 to CO by using Ag-modified,Zn-doped Ga2O3. The formation rate of CO and selectivity toward CO evolution were 117μmol/h and 87.4%, respectively. In particular, we highlight that O2 was stoichiometrically evolved and that CO was derived from the introduced CO2.The investigation for the reaction conditions showed that a low reaction temperature, high partial pressure of CO2, and high concentration of NaHCO3 are important for achieving highly selective photocatalytic conversion of CO2 by H2O.
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