| 前驱物尺寸和形貌对纳米ZnO的影响 |
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| 引用本文： | 陈传志,周祚万.前驱物尺寸和形貌对纳米ZnO的影响[J].西南交通大学学报,2004,39(4):557-560. |
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| 作者姓名： | 陈传志 周祚万 |
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| 作者单位： | 西南交通大学材料科学与工程学院,四川,成都,6100031 |
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| 基金项目： | 国家自然科学基金资助项目(50272056)，四川省重点科技公关项目(川科计[2001]20号，[2002]7号) |
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| 摘 要： | 以Zn(NO3)2和CO(NH2)2为主要原料，用均匀沉淀法制备了不同粒径的纳米ZnO．通过控制沉淀反应的工艺参数，可得到不同尺寸的条状和片状前驱物；再通过调控焙烧条件，可得到不同尺寸的球状、网状和棒状纳米ZnO．用TEM及XRD等方法对前驱物及纳米产物进行表征和研究，结果表明，纳米ZnO的形貌和尺寸在很大程度上取决于前驱物的形貌和尺寸．
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| 关 键 词： | 均匀沉淀法 前驱物 纳米ZnO 尺寸 形貌 透射电子显微镜 X射线衍射 |
| 文章编号： | 0258-2724(2004)04-0557-04 |
Influences of Morphology and Size of Precursor on Nano-ZnO |
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| CHEN Chuan-zhi,ZHOU Zuo-wan.Influences of Morphology and Size of Precursor on Nano-ZnO[J].Journal of Southwest Jiaotong University,2004,39(4):557-560. |
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| Authors: | CHEN Chuan-zhi ZHOU Zuo-wan |
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| Abstract: | Nano-ZnO powders with diameters of 8 to 130 nm were prepared from zinc nitrate and urea by homogeneous precipitation method. The precursors in different sizes and with rod-like or lamellar shapes were obtained by controlling the reaction procedures. Then, nano-ZnO of different sizes and with spherical, net-like and rod-like shapes could be obtained under different calcination conditions. The microstructures and morphologies of the precursors and nano-ZnO particles were analyzed with TEM (transmission electron microscope) and XRD (X-ray diffraction), showing that the shapes and sizes are determined in a great extent by those of the precursors. |
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| Keywords: | homogeneous precipitation method precursors nano-ZnO TEM XRD |
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