| Project/Area Number |
26870231
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional solid state chemistry
Inorganic industrial materials
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| Research Institution | University of Fukui |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 純水電解 / 水のイオン伝導度 / オゾン水 / 支持塩無し電気化学測定 / 微小電極 / 1段階2電子移動反応 / 電解電極 / 電解質 / 電気分解 / 支持塩フリー / 無塩電解 / 多孔質ガラス / イオン交換電解電極 |
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| Outline of Final Research Achievements |
Electrolysis of pure water was realized with no supporting electrolyte at two closely adjacent parallel electrodes in a thin layer cell under the steady state when the distance of the electrodes was less than 100 μm, and the applying voltage was more than ca.1.23 V without overpotential thermodynamically. When applying much higher voltage, ozone dissolved in pure water was generated. In this study, the inter-distance of two planar electrodes was controlled by piezo stage from 0 to 100 μm, and current-voltage curves of pure water were obtained.
Because the resistivity of pure water is 18.3 MΩ・cm owing to the ionic concentration, if the inter-distance of two planar electrodes (A = 1 cm2 in area size) is 10 μm, the resistance of the cell is estimated as 18 kΩ. In addition, since water is electro-decomposed into hydrogen ion and hydroxide ion as the charge carriers of high concentration by Faradaic current, the ohmic voltage of the solution resistance is expected to become small.
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