A facile and reliable solvothermal route for SnO microstructures with different morphologies Online publication date: Mon, 31-Mar-2014
by Guang Sun; Fengxiao Qi; Yanwei Li; Naiteng Wu; Jianliang Cao; Hari Bala; Zhanying Zhang
International Journal of Nanomanufacturing (IJNM), Vol. 9, No. 3/4, 2013
Abstract: SnO micro/nanostructures with different morphologies have been successfully synthesised through a facile solvothermal method by using SnCl2•2H2O and NaOH as raw materials, and absolute ethanol as solvent. The as-prepared samples are characterised by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). Results indicate that the morphology of SnO can be controlled by simply changing the Sn2+/OH− molar ratio. Flower-like SnO hierarchical microstructures assembled by nanosheets with thickness about 200-500 nm can be prepared at 140°C when the molar ratio of Sn2+/OH− is 1:3. Assemblies of cubic-like building blocks and hexahedral particles in micrometer size are obtained when the molar ratio of Sn2+/OH− is adjusted to be 1:3.5 and 1:4, respectively. The possible formation mechanism of SnO with different morphology is discussed.
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