Selected Papers : Ion-Selective Marangoni Instability of Oil/Water Interface under a DC Voltage
-
- Maki Syungo
- Department of Chemical Engineering and Materials Science, Doshisha University
-
- Yamamoto Ryota
- Department of Chemical Engineering and Materials Science, Doshisha University
-
- Yamamoto Daigo
- Department of Chemical Engineering and Materials Science, Doshisha University
-
- Shioi Akihisa
- Department of Chemical Engineering and Materials Science, Doshisha University
書誌事項
- タイトル別名
-
- Ion-Selective Marangoni Instability of Oil/Water Interface under a DC Voltage
この論文をさがす
抄録
Ion-selective Marangoni instability (MI) was studied by electrochemical measurements in order to determine the non-hydrodynamic nonlinear dynamics inherent to the process. An oil-soluble surfactant and calcium ion reacted at the interface, where the reaction products form aggregates. We generated a macroscopic interface where interfacial processes such as reaction and aggregation were synchronized. In this case, a non-hydrodynamic regime was observed before convection: Immediately after applying voltage, we observed an unsynchronized interface and an irregular interfacial flow. However, when the amount of ion transport across the interface exceeded a threshold value, the interface became synchronized, and successive occurrence of MI appeared as a periodical oscillation of interfacial tension. An aggregate of reaction products was considered to proceed homogeneously over the whole synchronized interface. We used a hemispherical droplet shape, and thus an increase in interfacial tension decreased the interfacial area. The interface was then compressed, providing a mechanical work for the desorption of aggregated products. This triggered a hydrodynamic instability.
収録刊行物
-
- Bulletin of the Chemical Society of Japan
-
Bulletin of the Chemical Society of Japan 87 (8), 863-870, 2014
公益社団法人 日本化学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001204141460608
-
- NII論文ID
- 130004153309
-
- NII書誌ID
- AA00580132
-
- ISSN
- 13480634
- 00092673
-
- NDL書誌ID
- 025633225
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可