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| 化学还原法制备纳米银粉及性能表征 | |
| 引用本文： | 魏智强,夏天东,冯旺军,王青,戴剑锋,闫鹏勋.化学还原法制备纳米银粉及性能表征[J].中国粉体技术,2006,12(3):4-6. |
| 作者姓名： | 魏智强 夏天东 冯旺军 王青 戴剑锋 闫鹏勋 |
| 作者单位： | 1. 兰州理工大学,理学院;甘肃省有色金属新材料国家重点实验室,甘肃,兰州,730050 2. 甘肃省有色金属新材料国家重点实验室,甘肃,兰州,730050 3. 兰州理工大学,理学院 4. 兰州大学,物理科学与技术学院,甘肃,兰州,730000 |
| 基金项目： | 引进国际先进农业科技计划(948计划) |
| 摘 要： | 在低温反应条件下,通过化学还原的方法以双氧水还原银氨配离子,制备了Ag纳米粉,并利用X射线衍射(XRD)、透射电子显微镜(TEM)对样品的成分、形貌、晶体结构、粒度及其分布进行性能表征;用红外吸收光谱(FT-IR)对结构组成进行定性分析;采用热失重分析(TGA)和差示扫描量热分析(DSC)研究了在热处理过程中的物相转变。结果表明:在所选择的实验条件下制备了类球形分布、分散性好的Ag纳米颗粒,其粒径主要分布在10￣50nm范围,平均粒径为26nm,晶体结构与相应的块体材料基本相同,为fcc结构,样品具有很强的吸附性。 |
| 关 键 词： | 银纳米粉 化学还原法 粒度 性能 |
| 文章编号： | 1008-5548（2006）03-0004-03 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005年5月23日 |
Preparation and Characterization of Silver Nano-particles by Chemical Reduction Method |
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| WEI Zhi-qiang,XIA Tian-dong,FENG Wang-jun,WANG Qing,DAI Jian-feng,YAN Peng-xun.Preparation and Characterization of Silver Nano-particles by Chemical Reduction Method[J].China Powder Science and Technology,2006,12(3):4-6. | |
| Authors: | WEI Zhi-qiang XIA Tian-dong FENG Wang-jun WANG Qing DAI Jian-feng YAN Peng-xun |
| Affiliation: | 1.School of Sciences; 2. State Key Lab of Advanced New Non-ferrous Materials, Lanzhou University of Technology, Lanzhou 730050; 3. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China |
| Abstract: | The silver nano-powders was synthesized at low temperature using H2O2 reductive Ag(NH3)2]+ by the chemical reduction method. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) to determine the chemical composition, morphology, crystal structure, the particle size and size distribution. The structure composition and the phase change in the heat treatment were analysed respectively by FT-IR spectrum and thermogravimetric analyzer(TGA)and diffirential scanning calorimeter(DSC). The experiment results showed that the Ag nano-particles synthesized by this method with good dispersion and uniformly quasi-spherical shapes, the average particle size was about 26 nm, ranging from 10 nm to 50 nm with a narrow size distribution. It was also found that the crystal structure of the samples was the same as the bulk materials, was fcc structure, the samples have strong adsorption. |
| Keywords: | silver nano-powder chemicalreduction particlesize property |
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