碳纳米管
石墨
纳米管
硝酸银
纳米技术
纳米
化学工程
材料科学
环境压力
碳纤维
表征(材料科学)
毛细管作用
扫描电子显微镜
分解
化学
复合材料
有机化学
复合数
工程类
物理
热力学
作者
D. Ugarte,A. Châtelain,Walt A. de Heer
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1996-12-13
卷期号:274 (5294): 1897-1899
被引量:524
标识
DOI:10.1126/science.274.5294.1897
摘要
Open carbon nanotubes were filled with molten silver nitrate by capillary forces. Only those tubes with inner diameters of 4 nanometers or more were filled, suggesting a capillarity size dependence as a result of the lowering of the nanotube-salt interface energy with increasing curvature of the nanotube walls. Nanotube cavities should also be less chemically reactive than graphite and may serve as nanosize test tubes. This property has been illustrated by monitoring the decomposition of silver nitrate within nanotubes in situ in an electron microscope, which produced chains of silver nanobeads separated by high-pressure gas pockets.
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