Vortex mediated fabrication of 2D antimonene sheets from antimony powder
Date
2024
Authors
Alrashaidi, F.A.
Rahpeima, S.
Luo, X.
Vimalanathan, K.
Alotabi, A.S.
Alharbi, T.
Chen, X.
Chen, D.
Tang, Y.
Gibson, C.
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Journal article
Citation
RSC Mechanochemistry, 2024; 1(5):432-436
Statement of Responsibility
Fayed Abdullah Alrashaidi, Soraya Rahpeima, Xuan Luo, Kasturi Vimalanathan, Abdulrahman S. Alotabi, Thaar Alharbi, Xianjue Chen, Dechao Chen, Youhong Tang, Christopher Gibson, Nadim Darwish, Qin Li and Colin L. Raston
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Abstract
Antimony powder is transformed into 2D antimonene in a vortex fluidic device (VFD) at ambient conditions, depending on the choice of solvent (optimised as a 1 : 1 mixture of isopropyl alcohol and dimethylformamide) and the operating parameters of the microfluidic platform which houses a rapidly rotating quartz tube inclined at +45°. It is hypothesised that the Coriolis force from the hemispherical base of the tube, as typhoon like high-shear topological fluid flow down to submicron dimensions, generates localised heating at the quartz interface. This melts the antimony powder (m.p. 630.6 °C) in situ which crystallizes in the β-phase, with semi-conducting antimonene a few layers thick, and demonstrating novel photoluminescence.
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© 2024 The Author(s). This Open Access Article is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported Licence