| Project/Area Number |
25620153
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Energy-related chemistry
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| Research Institution | Nagasaki University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | エネルギー変換 / 二酸化炭素還元 / ルイス塩基 / カーボンニュートラル / 電気化学 |
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| Outline of Final Research Achievements |
On electrochemical CO2 reduction, addition of pyridine as a Lewis base to the electrolyte resulted in change in the reactivity, depending on the concentration of pyridine. This phenomenon was supposed to indicate the pyridine adsorption on the electrode. Next, various anionic Lewis bases were examined. When trifluoromethansulfate was added to the electrolyte, generation of hydrogen was abnormally suppressed at an electrode potential of -1.2 V vs. Ag/AgCl and selectivity of methane was increased. It was revealed that the added Lewis bases don't activate CO2 molecules but suppress the generation of hydrogen. As a result of the suppression of hydrogen generation, methane production proceeded at so low over potential of -1 V and the selectivity was improved.
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