Experimental Study on nanobubbles at heating surface

• Project/Area Number: 25420164
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu University
• Principal Investigator: Nishiyama Takashi 九州大学, 工学(系)研究科(研究院), 助教 (80363381)
• Co-Investigator(Kenkyū-buntansha): TAKAHASHI Koji 九州大学, 大学院工学研究院, 教授 (10243924)
• Co-Investigator(Renkei-kenkyūsha): TAKATA Yasuyuki 九州大学, 大学院工学研究院, 教授 (70171444)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: ナノバブル / 固液界面 / 原子間力顕微鏡 / AFM / 撥水性 / 親水性 / 撥水 / 親水 / HOPG / 超撥水 / 熱工学

Outline of Final Research Achievements

Interfacial nanobubble is very thin vapor phase that exists at solid-liquid interface, was investigated using an atomic force microscope. Nanobubbles at the solid-liquid interface might contribute to the boiling initial bubble formation, however, often have questions such as in its stability. In this study, generation of nanobubbles is not determined only by the hydrophobicity of the surface, it was found that the presence of hydrophilic domains on the hydrophobic surface are affecting the nanobubbles. These results indicated that a possibility to control the nanobubbles by hydrophobic-hydrophilic combination surface.

Research Products

• [Journal Article] Metastable Nanobubbles at the Solid–Liquid Interface due to Contact Angle Hysteresis (2014)
  • Author(s): Takashi Nishiyama, Yutaka Yamada, Tatsuya Ikuta, Koji Takahashi, Yasuyuki Takata
  • Journal Title: Langmuir Volume: 600 Issue: 3 Pages: 1-6
  • DOI: 10.1021/la5036322
  • Peer Reviewed
• [Presentation] 原子間力顕微鏡による固液界面ナノバブルの合体の観察 (2015)
  • Author(s): 西山 貴史、高橋 厚史、高田 保之
  • Organizer: 日本機械学会 熱工学コンファレンス2015
  • Place of Presentation: 大阪府吹田市
  • Year and Date: 2015-10-24
• [Presentation] AFM study of gas phase at a solid-liquid interface (2015)
  • Author(s): Takashi Nishiyama, Yutaka Yamada, Tatsuya Ikuta, Koji Takahashi and Yasuyuki Takata
  • Organizer: 3nd International Workshop on Heat Transfer Advances for Energy Conservation and Pollution Control (IWHT2015)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2015-10-16
  • Int'l Joint Research
• [Presentation] 周波数変調原子間力顕微鏡を用いた固液界面ナノバブル計測 (2014)
  • Author(s): 西山 貴史, 高橋 厚史, 高田 保之
  • Organizer: 日本機械学会 熱工学コンファレンス2014
  • Place of Presentation: 芝浦工業大学 豊洲キャンパス
  • Year and Date: 2014-11-08 – 2014-11-09
• [Presentation] グラファイト-水界面におけるナノバブルの生成過程 (2014)
  • Author(s): 西山 貴史, 高橋 厚史, 高田 保之
  • Organizer: 第51回日本伝熱シンポジウム
  • Place of Presentation: アクトシティ浜松・コングレスセンター
  • Year and Date: 2014-05-21 – 2014-05-23
• [Presentation] 液中原子間力顕微鏡による固液界面ナノバブルの計測 (2013)
  • Author(s): 西山貴史、高橋厚史、高田保之
  • Organizer: 第50回 日本伝熱シンポジウム
  • Place of Presentation: ウェスティンホテル仙台
• [Presentation] 固液界面ナノバブルの形成および成長過程に関する研究 (2013)
  • Author(s): 西山貴史、高橋厚史、高田保之
  • Organizer: 日本機械学会 熱工学コンファレンス2013
  • Place of Presentation: 弘前大学 文京キャンパス
• [Presentation] NANOBUBBLES ON A VERY FLAT HYDROPHOBIC SURFACE PREPARED BY SELF-ASSEMBLED MONOLAYERS (2013)
  • Author(s): Takashi Nishiyama, Koji Takahashi, Yasuyuki Takata
  • Organizer: ASME 2013 4th Micro/Nanoscale Heat & Mass Transfer International Conference
  • Place of Presentation: University of Hong Kong, Hong Kong