Semi-quantitative study on the fabrication of densely packed and vertically aligned single-walled carbon nanotubes
Semi-quantitative study on the fabrication of densely packed and vertically aligned single-walled carbon nanotubes
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DOI：
10.1016/j.carbon.2006.01.027
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发表时间：
2006-08
期刊：
影响因子：
10.9
通讯作者：
Guofang Zhong;T. Iwasaki;H. Kawarada
中科院分区：
文献类型：
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作者：
Guofang Zhong;T. Iwasaki;H. Kawarada
本文提出，第一次，一个半定量的研究生产密集堆积和垂直排列（DPVA）的单壁碳纳米管（SWNTs）的超薄催化膜。采用点弧微波等离子体化学气相沉积法制备的DPVA-SWNTs具有最高的体积密度（60- 70 kgm-3）和相应的高表面密度（1016 m-2）。在制备DPVA-SWNTs的过程中，作者开发的0.5nm Al 2 O3/0.5nm Fe/> 5 nm Al 2 O3的纳米催化结构的精确厚度控制以及在低至600°C的温度下对基底进行短时间（5 min）的热预处理起着非常关键的作用。
This paper presents, for the first time, a semi-quantitative study on the production of densely packed and vertically aligned (DPVA) single-walled carbon nanotubes (SWNTs) from ultra-thin catalytic films. An up-to-date highest volume density (60–70kgm−3) and the corresponding high surface density on the order of 1016m−2of DPVA-SWNTs have been achieved by point-arc microwave plasma chemical vapor deposition. The precise thickness control of the sandwich-like catalytic nanostructure of 0.5nm Al2O3/0.5nm Fe/>5nm Al2O3, developed by the authors, and a short-time (5min) heat pretreatment of substrates at a temperature as low as 600°C play the very key role in the process of fabricating DPVA-SWNTs.