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首页> 外文期刊>Nanotechnology >Surprising arching sheet-like dendrites growing from BaF_2 nanocubes
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Surprising arching sheet-like dendrites growing from BaF_2 nanocubes

机译：从BaF_2纳米立方体中生长出令人惊讶的弓形片状树突

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摘要

BaF_2 nanocubes were prepared from quaternary reverse micelles of cetyl trimethyl ammonium bromide (CTAB), n-butanol, n-octane, and water. Interestingly, there are arching sheet-like dendrites growing between two neighbouring sides of these cubes. X-ray powder diffraction (XRD) analysis showed that the products were BaF_2 single phase. Scanning electron microscopy (SEM) or transition electron microscopy (TEM) was used to estimate the size of the final products. The results showed that the shape and size of particles were strongly dependent on the reaction conditions, such as the temperature and reaction time. When the reaction temperature was 25 deg C, we obtained cuboid-like particles with 'clean' surfaces (no dendrites growing on them), and when the temperature was 35 deg C, we obtained nanocubes with dendrites growing from them between the neighbouring sides. The influence of reaction time at a temperature of 35 deg C is also discussed.
机译：BaF_2纳米立方体是由十六烷基三甲基溴化铵（CTAB），正丁醇，正辛烷和水的季反胶束制备的。有趣的是，在这些立方体的两个相邻边之间生长着弓形的片状树突。 X射线粉末衍射（XRD）分析表明产物为BaF_2单相。使用扫描电子显微镜（SEM）或过渡电子显微镜（TEM）估算最终产品的尺寸。结果表明，颗粒的形状和尺寸强烈依赖于反应条件，例如温度和反应时间。当反应温度为25摄氏度时，我们获得了具有“干净”表面的长方体状颗粒（没有树枝状晶体在其上生长），而当温度为35摄氏度时，我们获得了纳米立方晶体，这些树枝状纳米颗粒从它们的相邻侧面之间生长。还讨论了反应时间在35摄氏度下的影响。

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