Effect of using chlorine-containing precursors in the synthesis of FeNi-filled carbon nanotubes
Effect of using chlorine-containing precursors in the synthesis of FeNi-filled carbon nanotubes
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DOI：
10.1016/j.carbon.2007.03.032
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发表时间：
2007-06-01
期刊：
影响因子：
10.9
通讯作者：
Wu, Dehai
中科院分区：
文献类型：
--
作者：
Lv, Ruitao;Kang, Feiyu;Wu, Dehai
以氯代苯C6 H6-xClx（x = 0-3）为碳前驱体，在碳纳米管（CNTs）中原位填充长的连续铁磁纳米线。该方法不仅可以制备单金属（如Fe、Co、Ni）纳米线，还可以制备合金（如FeNi）纳米线填充的碳纳米管。作为一个例子，我们显示了成功的合成FeNi填充碳纳米管。比率d（in）/W用于定量地评估CNT的中空程度，其中d（in）是纳米管的内径，W是纳米管的壁厚。该比值越大，碳纳米管的内腔越宽。统计结果表明，随着碳前驱体中Cl含量的增加，碳纳米管的中空度增加，从而为控制碳纳米管的中空度提供了一种方便的方法。(c)2007爱思唯尔有限公司保留所有权利。
A method for the in situ filling of thin-walled carbon nanotubes (CNTs) with long continuous ferromagnetic nanowires is described, using chlorine substituted benzene, C6H6-xClx (x = 0-3), as the carbon precursor. This method can be used to prepare not only single-metal (e.g. Fe, Co, Ni) nanowires, but also alloy (e.g. FeNi) nanowire-filled CNTs. As an example, we show the successful synthesis of FeNi-filled CNTs. A ratio d(in)/W is used to evaluate quantitatively the hollow degree of CNTs, where d(in) is the inner diameter and W is the wall thickness of a nanotube. The larger this ratio is, the wider inner cavity of the CNTs will be. Statistical results show that the hollow degrees of CNTs increase with the increase of Cl content in carbon precursors, which in turn affords a convenient way to control the hollow degrees of CNTs. (c) 2007 Elsevier Ltd. All rights reserved.