Synthesis of Locally Aligned Carbon nanotubes with catalytic combustion Technique
We report the growth of locally aligned carbon nanotubes synthesized by catalytic combustion of liquid hydrocarbon on copper plate and silicon wafer. Scanning electron microscope images show that uniform and locally aligned carbon nanotubes were obtained perpendicular to the substrate, and these carbon nanotubes have different outer diameters ranging from 200nm to 500 nm and uniform length over 10mm. The reaction time brought no significant influence to the diameter of carbon nanotubes, but the average length of the carbon nanotubes was obviously increased with prolonging the reaction time. It was also found that most of the carbon nanotubes have particles on their tips when the substrate was copper plates; however the carbon nanotubes synthesized on silicon wafer were opened without catalyst particles. The influence of various parameters such as the method of catalyst preparation, reaction time and the nature of the substrate the of the carbon nanotubes formation were studied. Following these results, a model of growth mechanism was suggested for the carbon nanotubes obtained by the method.
Carbon Nanotubes Catalyst Precursor
张红丹 邹小平 刘轩 程进 任鹏飞
北京信息工程学院传感技术研究中心 北京 100101;北京市重点实验室,传感器 北京 100101 极计算机股份有限公司 北京 100083
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）