کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1488845 | 992296 | 2013 | 4 صفحه PDF | دانلود رایگان |

• The FWCNTs can be synthesized effectively by DC arc discharge in low-pressure flowing air.
• The as-synthesized FWCNTs consist of SWCNTs, DWCNTs and TWCNTs.
• This approach presents an effective, low-cost synthesis of FWCNTs.
At low-pressure flowing air condition, few-walled carbon nanotubes (FWCNTs) have effectively been synthesized by arc discharge process with iron as a catalyst and sulfur as a promoter. TEM observations show that the as-synthesized FWCNTs with the diameter ranging from 1.6 to 6.0 nm consist of single-walled carbon nanotubes, double-walled carbon nanotubes and triple-walled carbon nanotubes. Our findings reveal that the yield of FWCNTs is found to be dependent on the air pressure, and the air pressure between 6 and 12 kPa is the most effective condition for yielding high quality FWCNTs. This approach presents an effective, low-cost synthesis of FWCNTs using low-pressure flowing air as buffer gas.
This approach presents an effective, low-cost synthesis of FWCNTs using low-pressure flowing air as the arc discharge ambient atmosphere, which also opens up new possibilities for low-cost synthesis of high-quality SWCNTs by tuning the arc discharge parameters.Figure optionsDownload as PowerPoint slide
Journal: Materials Research Bulletin - Volume 48, Issue 9, September 2013, Pages 3232–3235