Advances in organic adsorption on hydrophilic hierarchical structures for bionic superhydrophobicity: from fundamentals to applications

Li, Hao; Duan, Yajing; Shao, Yanlong; Zhang, Zhihui; Ren, Luquan

doi:10.1039/d4ta00456f

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta00456f

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Advances in organic adsorption on hydrophilic hierarchical structures for bionic superhydrophobicity: from fundamentals to applications

Hao Li,

Yajing Duan,

Yanlong Shao

et al.

Abstract: Generally, fabricating bionic superhydrophobic surfaces on hydrophilic smooth materials involves preapring micro/nanostructures and chemical modification. Recent breakthroughs based on organic adsorbate on hierarchically structured surfaces for superhydrophobicity are very promising...

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Pyramid-Shaped Superhydrophobic Surfaces for Underwater Drag Reduction

Zhang,

Wan,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

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Superhydrophobic surfaces hold immense potential in underwater drag reduction. However, as the Reynolds number increases, the drag reduction rate decreases, and it may even lead to a drag increase. The reason lies in the collapse of the air mattress. To address this issue, this paper develops a pyramid-shaped robust superhydrophobic surface with wedged microgrooves, which exhibits a high gas fraction when immersed underwater and good ability to achieve complete spreading and recovery of the air mattress through air replenishment in the case of collapse of the air mattress. Pressure drop tests in a water tunnel confirm that with continuous air injection, the drag reduction reaches 64.8% in laminar flow conditions, substantially greater than 38.4% in the case without air injection, and can achieve 50.8% drag reduction in turbulent flow. This result highlights the potential applications of superhydrophobic surfaces with air mattress recovery for drag reduction.

show abstract

Pyramid-Shaped Superhydrophobic Surfaces for Underwater Drag Reduction

Zhang,

Wan,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

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Advances in organic adsorption on hydrophilic hierarchical structures for bionic superhydrophobicity: from fundamentals to applications

Abstract: Generally, fabricating bionic superhydrophobic surfaces on hydrophilic smooth materials involves preapring micro/nanostructures and chemical modification. Recent breakthroughs based on organic adsorbate on hierarchically structured surfaces for superhydrophobicity are very promising...

Cited by 1 publication

References 268 publications

Pyramid-Shaped Superhydrophobic Surfaces for Underwater Drag Reduction

Pyramid-Shaped Superhydrophobic Surfaces for Underwater Drag Reduction

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