Pressure effects on nanotubes formation using the submerged arc in water method

被引：36

作者：

Sano, N

Naito, M

Chhowalla, M

Kikuchi, T

Matsuda, S

Iimura, K

Wang, HL

Kanki, T

Amaratunga, GAJ

机构：

[1] Himeji Inst Technol, Dept Chem Engn, Himeji, Hyogo 6712201, Japan

[2] Rutgers State Univ, Dept Ceram & Mat Engn, Piscataway, NJ 08854 USA

[3] Himeji Inst Technol, Dept Engn Sci, Himeji, Hyogo 6712201, Japan

[4] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 378卷 / 1-2期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/S0009-2614(03)01246-6

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：

Synthesis of multi-walled carbon nanotubes (MWCNTs) by an arc discharge between two graphite electrodes submerged in water under controlled pressure (from 400 to 760 Torr) is reported. Transmission and scanning electron microscopy investigations of the arc discharge product collected from the bottom of the reactor revealed high concentrations of MWCNTs at all pressures. Dynamic light scattering (DLS) on suspensions containing MWCNTs showed that the mean diameter of the nanotubes increases with decreasing pressure. Raman spectroscopy analysis reveals that the relative amount of disordered carbon is significantly less in the low-pressure samples. Furthermore, the yield of the deposit was found to be independent of the pressure. These results suggest that the physical properties of MWCNTs formed by the submerged arc can be controlled by varying the pressure. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：29 / 34

页数：6

共 18 条

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