Phase transition of iron inside carbon nanotubes under electron irradiation

被引：10
作者：
Kim, H [1 ]
Kaufman, MJ [1 ]
Sigmund, WM [1 ]
机构：
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
来源：
JOURNAL OF MATERIALS RESEARCH | 2004年 / 19卷 / 06期
关键词：
D O I：
10.1557/JMR.2004.0242
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Selective encapsulation of different materials or phases of a material inside a carbon nanotube leads to controlling local properties of the nanotube. We report a method of synthesizing stable gamma-Fe selectively inside a carbon nanotube by transforming alpha-Fe through electron irradiation in situ inside a transmission electron microscope. Therefore, this method enables a single nanotube to encase both high (gamma-Fe) and low (alpha-Fe) temperature phases of iron simultaneously. gamma-Fe produced by this method may be used as a novel catalyst, and its presence inside a carbon nanotube may affect the physical properties of the nanotube, which therefore can be used to modify the nanotube.
引用
收藏
页码：1835 / 1839
页数：5
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