Large-scale conformal synthesis of one-dimensional MAX phases

Yuting Li, Haoran Kong, Jin Yan, Qinhuan Wang, Xiang Liu, Mingxue Xiang and Yu Wang ()
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Yuting Li: Chinese Academy of Sciences
Haoran Kong: Chinese Academy of Sciences
Jin Yan: Chinese Academy of Sciences
Qinhuan Wang: Chinese Academy of Sciences
Xiang Liu: Chinese Academy of Sciences
Mingxue Xiang: Chinese Academy of Sciences
Yu Wang: Chinese Academy of Sciences

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract MAX phases, a unique class of layered ternary compounds, along with their two-dimensional derivatives, MXenes, have drawn considerable attention in many fields. Notably, their one-dimensional (1D) counterpart exhibits more distinct properties and enhanced assemblability for broader applications. We propose a conformal synthetic route for 1D-MAX phases fabrication by integrating additional atoms into nanofibers template within a molten salt environment, enabling in-situ crystalline transformation. Several 1D-MAX phases are successfully synthesized on a large scale. Demonstrating its potential, a copper-based layer-by-layer composites containing 1% by volume of 1D-Ti2AlC reinforced phase achieves an impressive 98 IACS% conductivity and a friction coefficient of 0.08, while maintaining mechanical properties comparable to other Cu-MAX phase composites, making it suitable for advanced industrial areas. This strategy may promise opportunities for the fabrication of various 1D-MAX phases.

Date: 2024
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DOI: 10.1038/s41467-024-53137-0

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