Fast Synthesis of Gibbsite Nanoplates and Process Optimization using Box-Behnken Experimental Design



Zhang, Xin, Zhang, Xianwen, Graham, Trent R, Pearce, Carolyn I, Mehdi, B Layla, N'Diaye, Alpha T, Kerisit, Sebastien, Browning, Nigel D, Clark, Sue B and Rosso, Kevin M
(2017) Fast Synthesis of Gibbsite Nanoplates and Process Optimization using Box-Behnken Experimental Design. CRYSTAL GROWTH & DESIGN, 17 (12). pp. 6801-6808.

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Abstract

Developing the ability to synthesize composi-tionally and morphologically well-defined gibbsite particles with high yield is an ongoing need that has not yet achieved the required level of rational design. Here we report optimization of a clean inorganic synthesis route based on statistical experimental design examining the influence of Al(OH)3 gel precursor concentration, pH, and aging time at temperature. At 80 °C, the optimum synthesis conditions of gel concentration at 0.5 M, pH at 9.2, and time at 72 h maximized the reaction yield up to ∼88%. The resulting gibbsite product is composed of highly uniform euhedral hexagonal nanoplates within a basal plane diameter range of 200−400 nm. The independent roles of key system variables in the growth mechanism are considered. On the basis of these optimized experimental conditions, the synthesis procedure, which is both cost-effective and environmentally friendly, has the potential for mass production scale-up of high quality gibbsite material for various fundamental research and industrial applications.

Item Type: Article
Uncontrolled Keywords: 40 Engineering, 4016 Materials Engineering
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2018 08:37
Last Modified: 21 Jun 2024 08:43
DOI: 10.1021/acs.cgd.7b01400
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3028835