A liquid metal reaction environment for the room-temperature synthesis of atomically thin metal oxides

Zavabeti, S, Ou, J, Carey, B, Syed, N, Orrell-Trigg, R, Mayes, E, Xu, C, Kavehei, O, O'Mullane, A, Kaner, R, Kalantar Zadeh, K and Daeneke, T 2017, 'A liquid metal reaction environment for the room-temperature synthesis of atomically thin metal oxides', Science, vol. 358, no. 6361, pp. 332-335.


Document type: Journal Article
Collection: Journal Articles

Title A liquid metal reaction environment for the room-temperature synthesis of atomically thin metal oxides
Author(s) Zavabeti, S
Ou, J
Carey, B
Syed, N
Orrell-Trigg, R
Mayes, E
Xu, C
Kavehei, O
O'Mullane, A
Kaner, R
Kalantar Zadeh, K
Daeneke, T
Year 2017
Journal name Science
Volume number 358
Issue number 6361
Start page 332
End page 335
Total pages 4
Publisher American Association for the Advancement of Science (AAA)
Abstract Two-dimensional (2D) oxides have a wide variety of applications in electronics and other technologies. However, many oxides are not easy to synthesize as 2D materials through conventional methods. We used nontoxic eutectic gallium-based alloys as a reaction solvent and co-alloyed desired metals into the melt. On the basis of thermodynamic considerations, we predicted the composition of the self-limiting interfacial oxide. We isolated the surface oxide as a 2D layer, either on substrates or in suspension. This enabled us to produce extremely thin subnanometer layers of HfO2, Al2O3, and Gd2O3. The liquid metal-based reaction route can be used to create 2D materials that were previously inaccessible with preexisting methods. The work introduces room-temperature liquid metals as a reaction environment for the synthesis of oxide nanomaterials with low dimensionality.
Subject Functional Materials
DOI - identifier 10.1126/science.aao4249
Copyright notice © Tha Authors
ISSN 1095-9203
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