Applied Chemistry, Vol.6, No.2, 655-658, November, 2002
Arc-Discharge를 이용한 고순도 MWNTs합성 공정 개발
Development of the Synthetic Process of High Purity MWNTs Using Arc-Discharge
The Synthetic methods for high yield of multiwalled carbon nanotube (MWNT) with high purity by arc discharge have been investigated. The diameter of synthesized MWNTs was from 10 to 30nm. MWNTs were synthesized in various gases such as Ar, He, H2 and CH4. The introduction of H2 gases during the synthesis of MWNTs was improved the length of the samples. And The introduction of CH4 was improved the amount of samples. To obtain the high purity MWNTs, the synthesized MWNTs was purified under Air of O2 gas. The purity of the MWNTs was higher at O2 ambient gas