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Formation of Flower-Like Magnesium Hydroxide Microstructure via a Solvothermal Process
Huiyu Chen,Chunju Xu,Yaqing Liu,Guizhe Zhao 대한금속·재료학회 2012 ELECTRONIC MATERIALS LETTERS Vol.8 No.5
Flower-like magnesium hydroxide (Mg(OH)2) microstructure composed of many sheet-like nanopetals was prepared on a large scale via a solvothermal reaction at 200°C for 24 h. Water and ethanol mixed solution was employed as solvent and no additional surfactant was involved during the synthetic process. The Mg(OH)2microflowers were characterized by XRD, SEM, HRTEM, and UV-vis techniques. The average size of single flower is about 2 μm and the thickness of the petals ranges from 20 to 30 nm. The temperature and volume ratio of water to ethanol were found to be key roles for controlling the morphology of Mg(OH)2 products. The assembled petals of the Mg(OH)2 microflowers became thicker and smoother with the amount of water decreased in the mixed solvent. The present method is low cost, simple handle and environmentally benign,thus, it can be relatively easy to be scaled up for industrial production.