Synthesis of carbon nanofibers formed on density-controlled Ni catalyst

摘要：

Preformed nickel nanoparticles are utilized for catalyst to synthesize carbon nanofibers(CNFs). The nanoparticles are attached to the substrate by spraying colloidal solution containing themselves and drying out. Then, CNFs were synthesized by using DC Plasma-enhanced chemical vapor deposition (DC-PECVD) at 480 ℃. Spraying-drying method is very simple to obtain particle-type catalyst with uniform diameter on the substrate and allows easy control of the catalyst density by adjusting the concentration of colloidal solution as well as cycles of spraying-drying process. The field emission characteristics of the CNFs grown by the aid of preformed nickel catalyst are investigated.

作者: Wal-Jun Kim Woo-Yong Sung Seung-Min Lee Ho-Young Lee Yong-Hyup Kim

作者单位: School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University, Shillim-dong, Kwanak-gu, Seoul 151-742, Korea

会议类型: 国际会议

会议名称: 19Th International Vacuum Nanoelectronics Conference & 50th International Field Emission Symposium(第19届真空微纳国际年会暨第50届场致发射国际会议)

会议地点: 桂林

会议语种:英文

页码: 319-320

在线出版日期: 2006-07-17（万方平台首次上网日期，不代表论文的发表时间）