Issue 11, 2015

Single-step synthesis of nanostructured γ-alumina with solvent reusability to maximise yield and morphological purity

Abstract

Insights of the chemical mechanism for the hydrothermal synthesis of nanostructured alumina are elucidated for the first time, demonstrating the effect of the NaOH : Al molar ratio not only on the resulting morphology of the material but also on the product yield. Highly uniform pure γ-Al2O3 nanorods are synthesised under acidic conditions (pH < 4), while basic medium (pH > 9) lead to γ-Al2O3 nanoplates. Maximisation of the morphological purity leads to a decrease in the overall aluminium yield which can be overcome by successful reusability of the synthesis medium in an effort to increase efficiency (yield and productivity) and minimise waste production towards feasible large-scale manufacturing of nanostructured materials.

Graphical abstract: Single-step synthesis of nanostructured γ-alumina with solvent reusability to maximise yield and morphological purity

Article information

Article type
Paper
Submitted
05 dec 2014
Accepted
10 feb 2015
First published
12 feb 2015
This article is Open Access
Creative Commons BY license

J. Mater. Chem. A, 2015,3, 6196-6201

Single-step synthesis of nanostructured γ-alumina with solvent reusability to maximise yield and morphological purity

T. E. Bell, J. M. González-Carballo, R. P. Tooze and L. Torrente-Murciano, J. Mater. Chem. A, 2015, 3, 6196 DOI: 10.1039/C4TA06692H

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