Nano Archive

Synthesis of [gamma]-alumina via precipitation in ethanol

Wang, Shaoyan and Li, Xiaoan and Wang, Shaofeng and Li, Yang and Zhai, Yuchun (2008) Synthesis of [gamma]-alumina via precipitation in ethanol. Materials Letters, 62 (20). 3552 - 3554.

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Nanosized γ-alumina powder was prepared via sol–gel precipitation in ethanol followed by a washing-drying treatment and calcination. The reactant concentration, the molar ratio of reactants and the calcination temperature were inspected by homogenous design. BET, TEM, XRD and IR were used to characterize the products. The experimental results showed that ethanol can avoid hard agglomerate during precipitation and that calcination temperature was the major factor to determine the surface area, the diameter and the phase composition of the final product. When the calcination temperatures were controlled between 686–1029 °C, the agglomerate-free nano-sized γ-alumina particles with a size range of 5–9 nm were obtained.

Item Type:Article
Uncontrolled Keywords:Synthesis; Nano γ-alumina; Sol–gel precipitation; Ethanol
Subjects:Material Science > Nanofabrication processes and tools
ID Code:6625
Deposited By:SPI
Deposited On:10 Feb 2010 17:42
Last Modified:10 Feb 2010 17:42

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