2016 Fiscal Year Final Research Report
Electrolysis method with no supporting electrolyte at two closely adjacent parallel electrodes in a thin layer cell using chemically modified porous glass
| 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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| Keywords | 純水電解 / 水のイオン伝導度 / オゾン水 |
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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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| Free Research Field |
電気化学
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