Three-dimensional bicontinuous nanoporous materials by vapor phase dealloying

Zhen Lu, Cheng Li, Jiuhui Han, Fan Zhang, Pan Liu, Hao Wang, Zhili Wang, Chun Cheng, Linghan Chen, Akihiko Hirata, Takeshi Fujita, Jonah Erlebacher, Mingwei Chen

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Three-dimensional bicontinuous open (3DBO) nanoporosity has been recognized as an important nanoarchitecture for catalysis, sensing, and energy storage. Dealloying, i.e., selectively removing a component from an alloy, is an efficient way to fabricate nanoporous materials. However, current electrochemical and liquid-metal dealloying methods can only be applied to a limited number of alloys and usually require an etching process with chemical waste. Here, we report a green and universal approach, vapor-phase dealloying, to fabricate nanoporous materials by utilizing the vapor pressure difference between constituent elements in an alloy to selectively remove a component with a high partial vapor pressure for 3DBO nanoporosity. We demonstrate that extensive elements, regardless of chemical activity, can be fabricated as nanoporous materials with tunable pore sizes. Importantly, the evaporated components can be fully recovered. This environmentally friendly dealloying method paves a way to fabricate 3DBO nanoporous materials for a wide range of structural and functional applications.

Original languageEnglish
Article number276
JournalNature communications
Volume9
Issue number1
DOIs
Publication statusPublished - 2018 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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    Lu, Z., Li, C., Han, J., Zhang, F., Liu, P., Wang, H., Wang, Z., Cheng, C., Chen, L., Hirata, A., Fujita, T., Erlebacher, J., & Chen, M. (2018). Three-dimensional bicontinuous nanoporous materials by vapor phase dealloying. Nature communications, 9(1), [276]. https://doi.org/10.1038/s41467-017-02167-y