| Project/Area Number |
16K14161
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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 |
Fluid engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
土井 謙太郎 大阪大学, 基礎工学研究科, 准教授 (20378798)
辻 徹郎 大阪大学, 基礎工学研究科, 助教 (00708670)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 分子流体力学 / マイクロ・ナノデバイス / イオン閉じ込め効果 / 電気二重層 / 単極イオン溶液 |
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| Outline of Final Research Achievements |
In this study, we propose a novel method of confining ions in micro- and nanogaps in electrolyte solutions and generating a liquid whose electroneutrality is broken by making either positive or negative charge become dominant. The existence of such a special condition is examined from both theoretical and experimental approaches. It is generally known that the electroneutrality is satisfied as an equilibrium condition in the liquid, but by providing a difference in the diffusion coefficients of cation and anion, by placing an ion-selective interface between solutions with different concentrations to change the permeability of ions. The break in electroneutrality in the stationary process is confirmed. A wider range of ion diffusion occurs than a general electric double layer near solid surfaces, and a potential difference is generated between the liquid layers.
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