Preparation and characterization of iron-encapsulating carbon nanotubes and nanoparticles

被引:50
作者
Liu, SW
Tang, XH
Mastai, Y
Felner, I
Gedanken, A [1 ]
机构
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
[2] Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel
[3] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[4] Univ Sci & Technol China, Dept Appl Chem, Anhua 230026, Peoples R China
关键词
Carbon nanotube; Encapsulation; Iron; Nanostructure;
D O I
10.1039/b004901h
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Iron-filled carbon nanostructures have been synthesized via a simple catalytic process, using Fe(CO)(5) as the source of both iron and carbon. The iron-containing materials can be separated from the products using a permanent magnet. The nanotubes have dimensions of several hundred nanometers in length and 10-20 nm in width. The fabrication of cup-like and centipede-like carbon nanostructures is reported for the first time. In addition, some large fractured carbon cages with an average diameter of 200 nm were also observed in the products. XRD measurements revealed that the encapsulated iron nanoparticles had a bcc structure. The magnetic properties of the products were evaluated by conducting dc magnetic measurements. XPS and TGA were also employed to characterize the products.
引用
收藏
页码:2502 / 2506
页数:5
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