Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 28, Issue 7, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201705091
Keywords
aqueous environments; directional and continuous transport; gas bubbles; geometry-gradient surfaces; superaerophilic surfaces
Categories
Funding
- National Research Fund for Fundamental Key Projects [2013CB933000]
- State High-Tech Development Plan [2012AA030305]
- National Natural Science Foundation [21421061, 21431009, 21504098]
- Key Research Program of the Chinese Academy of Sciences [KJZD-EW-M03]
- China Postdoctoral Science Foundation [BX201700020]
Ask authors/readers for more resources
Due to the direct and sufficient contacting with the aqueous environment, the directional and continuous transport of gas bubbles on open surface without energy input will advance a variety of applications in heat transfer, selective aeration, water electrolysis, etc. Unfortunately, the behaviors of gas bubbles in aqueous environment are mainly dominated by the buoyancy moving gas bubbles upward, resulting in their difficult manipulation. Therefore, realizing the directional and continuous transport of gas bubbles on open surface still remains a great challenge. Herein, a novel strategy integrating the super-aerophilic wettability with geometry-gradient structure is proposed, which can engender high driving force and low hysteresis resistance force acting on the gas bubbles. In experiment, these fabricated superaerophilic geometry-gradient polyethylene surfaces demonstrate distinguished performance of directionally and continuously transporting gas bubbles on open surfaces without energy input. In addition, the antibuoyancy bubble transportation device and the underwater bubble microreactor are successfully prepared in this manuscript, both of which illustrate the feasibility in the applications of complex environment and gas-related fields. It can be envisioned that this study will promote the understanding and development of underwater functional superwettability materials to achieve the directional and continuous transport of gas bubbles on the open surface.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available