Fabrication of micro/nanobubble generator by using vertically aligned carbon nanotubes
| Project/Area Number |
26286024
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nanomaterials engineering
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| Research Institution | Osaka University |
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Principal Investigator |
Hirahara Kaori 大阪大学, 工学(系)研究科(研究院), 准教授 (40422795)
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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 |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
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| Keywords | マイクロバブル / ナノバブル / カーボンナノチューブ / サイズ制御 / マイクロ・ナノデバイス / 凝着力 / MEMS / 粒径制御 |
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| Outline of Final Research Achievements |
A new device to electrochemically generate micro/nanobubbles has been developed with utilizing vertical aligned carbon nanotubes (CNTs) as the electrode. CNT-resin composite film electrode with unique surface, where CNT tips slightly protruded from the resin, was fubricated. This electrode revealed the controlled generation of isolated nanobubbles at specific address by water electrolysis, which will be an invaluable tool for investigating detailed fundamental information regarding the size-derived characteristics of nanobubbles. Actually, growth and shrinking of single nanobubble was investigated by atomic force microscopy, which enabled to visualize realtime pinning-depinning process of contact line and obtain experimental values of size-dependent pinning force. In addition, patterning of CNTs by photolithography technique was used for controlled generation of microbubbles. Cavity-patterned CNTs successfully generated and trap uniform-sized microbubbles in individual cavities.
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Report
(4 results)
Research Products
(18 results)
