Super-spreading on superamphiphilic micro-organized nanochannel anodic aluminum oxide surfaces for heat dissipation

Zhongpeng Zhu; Yupeng Chen; Zhe Xu; Zhenwei Yu; Xianfeng Luo; Jiajia Zhou; Ye Tian; Lei Jiang

doi:10.1016/j.isci.2021.102334

Super-spreading on superamphiphilic micro-organized nanochannel anodic aluminum oxide surfaces for heat dissipation

Zhongpeng Zhu, Yupeng Chen, Zhe Xu, Zhenwei Yu, Xianfeng Luo, Jiajia Zhou, Ye Tian, Lei Jiang

Research output: Contribution to journal › Article › Research › peer-review

25 Citations (Scopus)

Abstract

Nature-inspired superamphiphilic surfaces have drawn tremendous attention owing to its extreme liquid-loving behaviors. Herein, a micro-organized nano-channel (Mo-Na) superamphiphilic anodic aluminum oxide (AAO) surface with long-lasting superamphiphilic property is prepared by a facile one-step anodization method with controllable temperature change. Analysis of dynamic wetting behaviors on superamphiphilic Mo-Na AAO surfaces for various liquids reveals that the spreading factor is in negative correlation with the surface tension and liquid polarity. Detailed observation of the three-phase contact line shows a micro-scale capillary film on superamphiphilic Mo-Na AAO surfaces, which results from the horizontal component of the capillary force. Taking advantage of the superamphiphilic property, water droplets can spread completely on these Mo-Na AAO surfaces within a short time, which can be applied for efficient heat dissipation. Moreover, the unique AAO surface with Mo-Na structures also offers an effective template for future efforts in AAO-based composite devices.

Original language	English
Article number	102334
Number of pages	18
Journal	iScience
Volume	24
Issue number	4
DOIs	https://doi.org/10.1016/j.isci.2021.102334
Publication status	Published - 23 Apr 2021
Externally published	Yes

Keywords

Biomimetics
Materials Property
Surface Property

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10.1016/j.isci.2021.102334

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title = "Super-spreading on superamphiphilic micro-organized nanochannel anodic aluminum oxide surfaces for heat dissipation",

abstract = "Nature-inspired superamphiphilic surfaces have drawn tremendous attention owing to its extreme liquid-loving behaviors. Herein, a micro-organized nano-channel (Mo-Na) superamphiphilic anodic aluminum oxide (AAO) surface with long-lasting superamphiphilic property is prepared by a facile one-step anodization method with controllable temperature change. Analysis of dynamic wetting behaviors on superamphiphilic Mo-Na AAO surfaces for various liquids reveals that the spreading factor is in negative correlation with the surface tension and liquid polarity. Detailed observation of the three-phase contact line shows a micro-scale capillary film on superamphiphilic Mo-Na AAO surfaces, which results from the horizontal component of the capillary force. Taking advantage of the superamphiphilic property, water droplets can spread completely on these Mo-Na AAO surfaces within a short time, which can be applied for efficient heat dissipation. Moreover, the unique AAO surface with Mo-Na structures also offers an effective template for future efforts in AAO-based composite devices.",

keywords = "Biomimetics, Materials Property, Surface Property",

author = "Zhongpeng Zhu and Yupeng Chen and Zhe Xu and Zhenwei Yu and Xianfeng Luo and Jiajia Zhou and Ye Tian and Lei Jiang",

note = "Funding Information: This research is supported by the National Research Fund for Fundamental Key Projects of China ( 2017YFA0204504 , 2018YFA0208502 ), National Natural Science Foundation ( 21972154 , 21988102 , 22090052 , 22002005 , 52003012 , 21902006 ), Frontier Science Key Projects of CAS ( ZDBS-LY-SLH022 ) and Beijing Municipal Science and Technology Commission No. Z18110000441801 , and China Postdoctoral Science Foundation ( 2019M660397 , 2019TQ0014 ). Publisher Copyright: {\textcopyright} 2021 The Authors",

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doi = "10.1016/j.isci.2021.102334",

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TY - JOUR

T1 - Super-spreading on superamphiphilic micro-organized nanochannel anodic aluminum oxide surfaces for heat dissipation

AU - Zhu, Zhongpeng

AU - Chen, Yupeng

AU - Xu, Zhe

AU - Yu, Zhenwei

AU - Luo, Xianfeng

AU - Zhou, Jiajia

AU - Tian, Ye

AU - Jiang, Lei

N1 - Funding Information: This research is supported by the National Research Fund for Fundamental Key Projects of China ( 2017YFA0204504 , 2018YFA0208502 ), National Natural Science Foundation ( 21972154 , 21988102 , 22090052 , 22002005 , 52003012 , 21902006 ), Frontier Science Key Projects of CAS ( ZDBS-LY-SLH022 ) and Beijing Municipal Science and Technology Commission No. Z18110000441801 , and China Postdoctoral Science Foundation ( 2019M660397 , 2019TQ0014 ). Publisher Copyright: © 2021 The Authors

PY - 2021/4/23

Y1 - 2021/4/23

N2 - Nature-inspired superamphiphilic surfaces have drawn tremendous attention owing to its extreme liquid-loving behaviors. Herein, a micro-organized nano-channel (Mo-Na) superamphiphilic anodic aluminum oxide (AAO) surface with long-lasting superamphiphilic property is prepared by a facile one-step anodization method with controllable temperature change. Analysis of dynamic wetting behaviors on superamphiphilic Mo-Na AAO surfaces for various liquids reveals that the spreading factor is in negative correlation with the surface tension and liquid polarity. Detailed observation of the three-phase contact line shows a micro-scale capillary film on superamphiphilic Mo-Na AAO surfaces, which results from the horizontal component of the capillary force. Taking advantage of the superamphiphilic property, water droplets can spread completely on these Mo-Na AAO surfaces within a short time, which can be applied for efficient heat dissipation. Moreover, the unique AAO surface with Mo-Na structures also offers an effective template for future efforts in AAO-based composite devices.

AB - Nature-inspired superamphiphilic surfaces have drawn tremendous attention owing to its extreme liquid-loving behaviors. Herein, a micro-organized nano-channel (Mo-Na) superamphiphilic anodic aluminum oxide (AAO) surface with long-lasting superamphiphilic property is prepared by a facile one-step anodization method with controllable temperature change. Analysis of dynamic wetting behaviors on superamphiphilic Mo-Na AAO surfaces for various liquids reveals that the spreading factor is in negative correlation with the surface tension and liquid polarity. Detailed observation of the three-phase contact line shows a micro-scale capillary film on superamphiphilic Mo-Na AAO surfaces, which results from the horizontal component of the capillary force. Taking advantage of the superamphiphilic property, water droplets can spread completely on these Mo-Na AAO surfaces within a short time, which can be applied for efficient heat dissipation. Moreover, the unique AAO surface with Mo-Na structures also offers an effective template for future efforts in AAO-based composite devices.

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KW - Materials Property

KW - Surface Property

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Super-spreading on superamphiphilic micro-organized nanochannel anodic aluminum oxide surfaces for heat dissipation

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Keywords

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