2014 Fiscal Year Final Research Report
Effect of Lewis Base on Electrochemical CO2 Reduction
| 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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| Keywords | エネルギー変換 / 二酸化炭素還元 |
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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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| Free Research Field |
電気化学
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