Influence of the gas pressure on single-wall carbon nanotube formation
Influence of the gas pressure on single-wall carbon nanotube formation
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DOI：
10.1016/j.carbon.2005.04.026
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发表时间：
2005-10
期刊：
影响因子：
10.9
通讯作者：
I. Hinkov;S. Farhat;C. D. Scott
中科院分区：
文献类型：
--
作者：
I. Hinkov;S. Farhat;C. D. Scott
通过实验和建模来预测在电弧放电合成单壁碳纳米管（SWCNT）的特定条件下气压对物种分布和纳米管生长速率的影响。将数值结果与实验进行比较，以找到纳米管生长与压力之间一致的相关性。我们使用氩气和氦气作为缓冲气体，总压在 0.1 至 1bar 之间变化。我们通过实验观察到，阳极侵蚀速率和所生产的纳米管烟灰材料的 Brunauer-Emmett-Teller (BET) 表面积对反应器中的总气压非常敏感。
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 1bar. 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.