| 直流电弧等离子体法制备镍纳米粉 |
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| 引用本文： | 魏智强,温贤伦,吴现成,闫鹏勋.直流电弧等离子体法制备镍纳米粉[J].兰州大学学报(自然科学版),2003,39(5):38-40. |
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| 作者姓名： | 魏智强 温贤伦 吴现成 闫鹏勋 |
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| 作者单位： | 1. 兰州理工大学,理学院,甘肃,兰州,730050;兰州大学,物理科学与技术学院,甘肃,兰州,730000
2. 兰州大学,物理科学与技术学院,甘肃,兰州,730000 |
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| 基金项目： | 甘肃省科技攻关资助项目 ( 5 0 2 -0 41 2 1 1 ) |
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| 摘 要： | 运用直流电弧等离子体法制得镍纳米粉，并利用X射线衍射(XRD)、透射电子显微镜(TEM)和相应选区电子衍射(ED)、BET吸附等测试手段对样品的化学成分、形貌、晶体结构、晶格常数、粒度及其分布、比表面积进行性能表征．结果表明：本法所制得的镍纳米粉的晶格结构与相应的块物质相同，为fcc相结构．平均粒径47nm，粒径20～70nm，比表面积14．23m^2／g，呈规则的球形链状分布，并发现纳米晶体的晶格常数发生膨胀．
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| 关 键 词： | 电弧等离子体 镍纳米粉 粒度 晶格常数膨胀 比表面积 |
| 文章编号： | 0455-2059(2003)05-0038-03 |
| 修稿时间： | 2002年7月15日 |
Ni nanopowder prepared by D. C. arc plasma method |
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| WEI Zhi-qiang ,WEN Xian-lun,WU Xian-cheng,YAN Peng-xun.Ni nanopowder prepared by D. C. arc plasma method[J].Journal of Lanzhou University(Natural Science),2003,39(5):38-40. |
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| Authors: | WEI Zhi-qiang WEN Xian-lun WU Xian-cheng YAN Peng-xun |
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| Institution: | WEI Zhi-qiang 1,2,WEN Xian-lun2,WU Xian-cheng2,YAN Peng-xun2 |
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| Abstract: | The production of Ni nanopowders was prepared by D.C.arc plasma method,and was characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM) and the corresponding electron diffraction(ED),BET to determine the chemical composition,morphology,crystal microstructure,the size and size distribution,the specific surface area of the product. The experiment results showed that the crystal structure of the samples was the same as the bulk materials and was of fcc structure,with average size being about 47 nm,ranging from 20 nm to 70 nm and the specific surface area being 14.23 m2/g, which was distributed uniformly in spherical chain shapes,and the lattice parameter expansion was found. |
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| Keywords: | arc plasma nanopowder particle size lattice parameter expansion specific surface area |
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