Journal article

Green Synthesis of Low-Dimensional Aluminum Oxide Hydroxide and Oxide Using Liquid Metal Reaction Media: Ultrahigh Flux Membranes

Ali Zavabeti, Bao Yue Zhang, Isabela A de Castro, Jian Zhen Ou, Benjamin J Carey, Md Mohiuddin, Robi S Datta, Chenglong Xu, Adrian P Mouritz, Christopher F McConville, Anthony P O'Mullane, Torben Daeneke, Kourosh Kalantar-Zadeh

ADVANCED FUNCTIONAL MATERIALS | WILEY-V C H VERLAG GMBH | Published : 2018

Abstract

Liquid metal reaction media provides exciting new avenues for synthesizing low-dimensional materials. Here, the synthesis of atomically thin sheets and nanofibers of boehmite (γ-AlOOH) and their transformation into cubic alumina (γ-Al2O3) via annealing is explored. The sheets are as thin as one orthorhombic boehmite unit cell. The addition of aluminum into a room temperature alloy of gallium, followed by exposing the melt to either liquid water or water vapor, allows growing either 2D sheets or 1D fibers, respectively. The isolated oxide hydroxides feature large surface areas, with the sheet morphologies also showing a high Young's modulus. The method is green, since the liquid metal solvent..

View full abstract

University of Melbourne Researchers

Grants

Awarded by Australian Research Council Centre of Excellence FLEET


Awarded by Ministry of Science, Technology and Innovation of Brazil (CNPq)


Awarded by Australian Research Council


Funding Acknowledgements

This work was supported by Australian Research Council Centre of Excellence FLEET (CE170100039). The authors thank the facilities and scientific and technical assistance of the RMIT Microscopy and Microanalysis Facility (RMMF) and the RMIT Micro Nano Research Facility (MNRF). The authors acknowledge the Ministry of Science, Technology and Innovation of Brazil (CNPq) that funded Dr. Isabela Alves de Castro (Grant No. 200698/2015-0). Authors acknowledge Joel van Embden for the use of facilities supported through Australian Research Council (Grant No: DE150100427).