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Controllable synthesis of flower- and rod-like ZnO nanostructures by simply tuning the ratio of sodium hydroxide to zinc acetate

机译:通过简单地调节氢氧化钠与乙酸锌的比例,可控制地合成花状和棒状ZnO纳米结构

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摘要

A controlled synthesis of flower- and rod-like ZnO nanostructures in a hydrothermal phase has been realized in the absence of an additional template. The well-defined morphologies are obtained by simply tuning the ratio of sodium hydroxide to zinc acetate in a narrow range. The products are characterized by powder x-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The growth mechanism is suggested to be that the supersaturation of the precursor Zn(OH)(4)(2-) results in various nucleation habits, which induce the ZnO nanostructures with different morphologies.
机译:在没有其他模板的情况下,已经实现了水热相中花状和棒状ZnO纳米结构的可控合成。通过在狭窄范围内简单调节氢氧化钠与乙酸锌的比例即可获得定义明确的形态。产品的特点是粉末X射线衍射(XRD),扫描电子显微镜(SEM)和透射电子显微镜(TEM)。推测其生长机理是前驱体Zn(OH)(4)(2-)的过饱和会导致各种成核习惯,从而诱发具有不同形态的ZnO纳米结构。

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