Zhao Tingkai, Liu Yongning, Li Tiehu, Zhao Xiang
School of Materials Science, Northwestern Polytechnical University, Xi'an 710072, China.
J Nanosci Nanotechnol. 2010 Jun;10(6):4078-81. doi: 10.1166/jnn.2010.1980.
The current and arc pushing force of arcing process effects on the synthesis of single-walled carbon nanotubes were investigated by a temperature-controlled arc discharging furnace with Co-Ni alloy powder as catalyst at 600 degrees C. By experimental investigations, the optimal parameters of the process were obtained. The appropriate conditions included the current and arc pushing force of arcing process was 100 A and 80 A respectively, the buffer gas was helium and the gas pressure was kept at 500 torr. The experimental results indicated that the cooperative function of current and arc pushing force of arcing process played an important role in the production rate and purity of single-walled carbon nanotubes. The uniform diameter of single-walled carbon nanotubes was about 1.27 nm and the production rate was about 7 g/h and the purity was around 70%.
利用以Co-Ni合金粉末为催化剂的温控电弧放电炉，在600℃下研究了电弧过程的电流和电弧推力对单壁碳纳米管合成的影响。通过实验研究，获得了该过程的最佳参数。合适的条件包括电弧过程的电流和电弧推力分别为100A和80A，缓冲气体为氦气，气体压力保持在500托。实验结果表明，电弧过程的电流和电弧推力的协同作用对单壁碳纳米管的产率和纯度起着重要作用。单壁碳纳米管的均匀直径约为1.27nm，产率约为7g/h，纯度约为70%。
