Volume 20, Issue 43 2402481
Research Article

Oxygen-Terminated Polycrystalline Boron-Doped Diamond Superhydrophobic Surface with Excellent Mechanical and Thermal Stabilities

Peng Wang

Peng Wang

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Tianyi Wang

Tianyi Wang

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Mingchao Yang

Mingchao Yang

College of Physical Science and Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066000 China

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Qiliang Wang

Qiliang Wang

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Xiaoxi Yuan

Xiaoxi Yuan

Institute for Interdisciplinary Quantum Information Technology, Jilin Engineering Normal University, Changchun, 130052 China

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Zheng Cui

Zheng Cui

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Nan Gao

Nan Gao

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Junsong Liu

Junsong Liu

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Shaoheng Cheng

Shaoheng Cheng

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Zhigang Jiang

Zhigang Jiang

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

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Huichao Jin

Corresponding Author

Huichao Jin

Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022 China

E-mail: [email protected]; [email protected]

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Hongdong Li

Corresponding Author

Hongdong Li

State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130012 China

E-mail: [email protected]; [email protected]

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First published: 02 July 2024
Citations: 3

Abstract

Superhydrophobic surfaces are of great interest because of their remarkable properties. Due to its maximal hardness and chemical inertness, diamond film has great potential in fabricating robust superhydrophobic surfaces. In the present study, an oxygen-terminated polycrystalline boron-doped diamond (O-PBDD) superhydrophobic surface with micro/nano-hierarchical porous structures is developed. The preparation method is very simple, requiring only sputtering and dewetting procedures. The former involves sputtering gold and copper particles onto the hydrogen-terminated polycrystalline boron-doped diamond (H-PBDD) to form gold/copper films, whereas the latter involves placing the samples in an atmospheric tube furnace to form hierarchical pores. By controlling the etching parameters, the wettability of the O-PBDD surface can be adjusted from hydrophilic to superhydrophobic, which is significantly different to the normal hydrophilicity feature of O-termination diamonds. The water contact angle of the obtained O-PBDD surface can reach 165 ± 5°, which is higher than the superhydrophobic diamond surfaces that are reported in the literature. In addition, the O-PBDD surface exhibits excellent durability; it can maintain satisfactory superhydrophobicity even after high-pressure, high-temperature, and sandpaper friction tests. This work provides a new research direction for fabricating robust superhydrophobic materials with diamond film.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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