Anisotropic wetting characteristics of droplet on micro-grooved surface

Ding, Yi; Jia, Li; Yin, Liaofei; Dang, Chao; Liu, Xinyuan; Xu, Jinzhu

doi:10.1016/j.colsurfa.2021.127850

Colloids and Surfaces A: Physicochemical and Engineering Aspect

2022

DOI: 10.1016/j.colsurfa.2021.127850

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Anisotropic wetting characteristics of droplet on micro-grooved surface

Yi Ding

Li Jia

Liaofei Yin

et al.

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Cited by 13 publications

References 38 publications

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Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Lu,

Cui,

Zhao

et al. 2024

Adv Funct Materials

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Proton Exchange Membrane Fuel Cells (PEMFC) consist of channels that require efficient drainage for optimum performance. However, it remains a grand challenge to achieve both directed and high‐speed active drainage in PEMFC channels. This greatly limits current PEMFC performance. Herein, inspired by respiratory cilia, a bioinspired structural design strategy is introduced into the channel surface to significantly enhance its active droplet transport efficiency. Two artificial cilia arrays are fabricated and named as plane‐bottom artificial cilia array (PACA) and concave‐bottom artificial cilia array (CACA) according to their respective shapes. PACA demonstrates stable directional transport. The droplet speed reaches as high as 86 mm s−1 with droplet volumes ranging from 10 to 20 µL. This is surpassed by CACA. Its speed reaches as high as 163 mm s−1 for droplet volumes ranging from 10 to 50 µL. PEMFC experimental evaluation of diameter sizes shows that CACA can be tuned for enhancing its electrochemical performance. CACA‐8 achieves the maximum power density (0.5339 W cm−2) at 1.1864 A cm−2, representing an 18.70% increase compared to conventional PEMFC channels. This work provides a promising strategy for the stable and efficient transport of liquid water in PEMFC.

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Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Lu,

Cui,

Zhao

et al. 2024

Adv Funct Materials

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Effect of micro-textured morphology with different wettabilities on tool cutting performance

Duan

Chen

2022

Int J Adv Manuf Technol

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Microgroove-structured liquid-like surface for liquid discrimination

Jiao,

Cheng,

Lai

et al. 2024

Sci. China Mater.

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Anisotropic wetting characteristics of droplet on micro-grooved surface

Cited by 13 publications

References 38 publications

Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Cilia‐Inspired Functional Channels for High‐Speed and Directional PEMFC Drainage

Effect of micro-textured morphology with different wettabilities on tool cutting performance

Microgroove-structured liquid-like surface for liquid discrimination

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