Influence of the gas pressure on single-wall carbon nanotube formation

被引：38

作者：

Hinkov, I

Farhat, S

Scott, CD

机构：

[1] Univ Paris 13, Dept Chem Engn, LIMHP, F-93430 Villetaneuse, France

[2] NASA, Lyndon B Johnson Space Ctr ES3, Houston, TX 77058 USA

来源：

CARBON | 2005年 / 43卷 / 12期

关键词：

carbon nanotubes; arc discharge; modeling; BET surface area;

D O I：

10.1016/j.carbon.2005.04.026

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：

Experiments and modeling are performed to predict the effect of gas pressure on species distributions and nanotube growth rate under specific conditions of synthesis of single-wall carbon nanotubes (SWCNTs) by arc discharge. Numerical results are compared with experiments in order to find a consistent correlation between the nanotube growth and the pressure. We use argon and helium as buffer gases with a total pressure varied between 0.1 and 1 bar. We experimentally observe that both the anode erosion rate and the Brunauer Emmett-Teller (BET) surface area of the as-produced nanotube soot material are very sensitive to the total gas pressure in the reactor. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2453 / 2462

页数：10

共 39 条

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