摘要
以乙炔(C2H2)为碳源,N2为载气,二茂铁为催化前驱物,采用浮动催化法,在碳纤维衬底上制备了垂直定向的碳纳米片阵列。利用SEM,EDX和Raman光谱对所得产物进行了表征。结果表明经十二烷基磺酸钠(SDS)和二茂铁的丙酮溶液煮沸和浸泡处理后的碳纤维表面所生长的碳纳米片长度约为600 nm,宽度约为50 nm。Raman光谱分析表明所制备的碳纳米片为石墨结构。碳纤维的预处理不仅活化了表面,而且避免了催化剂向其内部的渗透和吸收。基于以上结果,碳纤维/碳纳米片在场发射领域很可能有重要的应用。
Vertically aligned carbon nanosheets were synthesized on carbon fiber substrate by floating catalyst method.In this experiment,C2H2 was carbon source gas,N2 was carrier gas and ferrocene was catalyst precursor.The products were characterized by scanning electron microscope（SEM）,energy dispersive X-ray spectroscope（EDX） and Raman spectroscope.The results show that after carbon fibers are immersed and boiled in the solution of ferrocene,sodium dodecylsulfonate（SDS） and acetone,the length and width of carbon nanosheets grown on carbon fibers are about 600 and 50 nm respectively.Raman spectrum indicates that carbon nanosheets have graphitic structure.The pretreatment of carbon fibers activates the surface and decreases the pervasion and absorption of catalyst into the carbon fibers.Based on the above results,carbon fibers/carbon nanosheets probably has important applications in field emission display.
出处
《功能材料与器件学报》
CAS
CSCD
北大核心
2008年第3期669-674,共6页
Journal of Functional Materials and Devices
基金
国家自然科学基金(50072029
50572101)资助项目
关键词
碳纤维
碳纳米片
浮动催化
carbon fibers
carbon nanosheets
floating catalyst
