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Simultaneous fabrication of porous metals and metallic nanowires via atmospheric pressure plasma-assisted electro-dealloying

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Abstract

Porous metals and metallic nanowires have gained significant attention for their potential applications in catalysis, sensing, and energy storage. Developing a versatile and efficient method for fabricating these functional materials is crucial but remains challenging. Herein, we report a novel and facile electro-dealloying strategy to simultaneously fabricate porous metals and metallic nanowires using atmospheric radio-frequency (RF) capacitively coupled plasmas. The synergistic effect of the heating and plasma sheath’s electric field lead to the nonequilibrium melting of the alloy, resulting continuous ejection of the melted segments to form nanowires and let the unmelted residual parts evolve into a porous structure. This method is applicable to alloys with large melting point differences of their constituent elements, and provides a promising approach to fabricate porous metals and metallic nanowires for a wide range of functional applications.

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Authors and Affiliations

  1. State Key Lab for Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    AnKang Lu, HanYu Li, Yao Yu & Lin Liu

  2. Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China

    Yao Yu

Authors
  1. AnKang Lu
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  2. HanYu Li
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  3. Yao Yu
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  4. Lin Liu
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Corresponding author

Correspondence to Yao Yu.

Additional information

This work was supported by the National Natural Science Foundation of China (Grant No. 51872105). The authors are grateful to the Analytical and Testing Center of HUST for technical assistance.

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The supporting information is available online at tech.scichina.com and link.springer.com. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.

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11431_2022_2259_MOESM1_ESM.doc

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Lu, A., Li, H., Yu, Y. et al. Simultaneous fabrication of porous metals and metallic nanowires via atmospheric pressure plasma-assisted electro-dealloying. Sci. China Technol. Sci. 66, 165–172 (2023). https://doi.org/10.1007/s11431-022-2259-0

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  • DOI: https://doi.org/10.1007/s11431-022-2259-0

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