阵列碳纳米管的石墨化程度  

Graphitization degree of carbon nanotube arrays

作　　者：马康夫[1,2] 付志兵[1] 易勇[2] 王朝阳[1] 程艳奎[2] 唐永建[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《强激光与粒子束》2014年第2期87-92,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11075143/A050609);等离子体物理重点实验室基金项目(9140C680502110C6807);四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放基金项目(10zxfk34)

摘　　要：采用化学气相沉积法制备了阵列碳纳米管薄膜,对阵列碳纳米管的石墨化程度进行了系统研究。利用扫描电子显微镜(SEM)、拉曼光谱(Raman)对样品形貌以及结构进行了表征。探讨了不同实验参数对阵列碳纳米管石墨化程度影响的机理。结果发现,在一定催化剂浓度范围内,催化剂浓度过低时,阵列碳纳米管的石墨化程度较差,而随着催化剂浓度的增加,阵列碳纳米管的石墨化程度逐渐变好;生长石墨化程度较好的阵列碳纳米管需要合适的进液速度,进液速度过低或过高都会使得碳纳米管的石墨化程度变差;此外,生长石墨化程度较好的阵列碳纳米管也需要合适的生长温度,生长温度过低或过高都会使得碳纳米管的石墨化程度变差。Aligned carbon nanotube arrays （ACNTs） were prepared by chemical vapor deposition （CVD）. The graphitiza- tion degree of ACNTs was systematically investigated. The morphology and structure of the products were characterized by scan- ning electron microscopy （SEM） and Raman spectroscopy. The mechanism how the different experiment conditions affect the graphitization degree of ACNTs was discussed. The results indicated that the graphitization degree of ACNTs would be bad when the concentration of catalyst was too low within a certain range of catalyst concentration. And only if the flowing rate of reactant is appropriate, the graphitization degree of ACNTs will be nice. Moreover, in order to obtain a good graphitization degree of AC- NTs, the growth temperature is need to control accurately.

关 键 词：阵列碳纳米管 石墨化程度 化学气相沉积 

分 类 号：TQ177[化学工程—硅酸盐工业]