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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Preparation and characterization of CuO nanoparticles with different morphology through a simple quick-precipitation method in DMAC–water mixed solvent
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Preparation and characterization of CuO nanoparticles with different morphology through a simple quick-precipitation method in DMAC–water mixed solvent

机译：通过简单的快速沉淀法在DMAC-水混合溶剂中制备和表征具有不同形态的CuO纳米颗粒

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摘要

In this paper, highly dispersed copper oxide (CuO) nanoparticles have been successfully prepared in DMAC–water mixed solvent by a quick-precipitation method. The as-prepared CuO nanoparticles were characterized by high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). Several kinds of CuO particles with different shapes were obtained including panicle-like, spherical-like, spindle-like and rod-like CuO particles. The effects of processing parameters on the size and shape of CuO particles such as the volume ratio of DMAC and water, the adding temperature of NaOH and the molar ratio of Cu~(2+) and OH~- were investigated. It is found that higher volume ratio of DMAC and water, higher adding temperature of NaOH and higher molar ratio of Cu~(2+) and OH~- result in smaller size of CuO particles. The nucleation and growth kinetic of the resulting CuO particles were also discussed.
机译：在本文中，已经通过快速沉淀法在DMAC-水混合溶剂中成功制备了高度分散的氧化铜（CuO）纳米颗粒。制备的CuO纳米颗粒通过高分辨率透射电子显微镜（HRTEM）和X射线衍射（XRD）表征。获得了几种不同形状的CuO颗粒，包括穗状，球形，纺锤状和棒状的CuO颗粒。考察了DMAC与水的体积比，NaOH的添加温度以及Cu〜（2+）与OH〜-的摩尔比等工艺参数对CuO颗粒尺寸和形状的影响。发现较高的DMAC和水的体积比，较高的NaOH添加温度和较高的Cu〜（2+）和OH〜-摩尔比导致较小的CuO颗粒尺寸。还讨论了所得CuO颗粒的成核和生长动力学。

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