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快速生长超长定向碳纳米管阵列的制备及机理
引用本文:何婷,王兵,王朝阳,付志兵,唐永建.快速生长超长定向碳纳米管阵列的制备及机理[J].强激光与粒子束,2011,23(6).
作者姓名:何婷  王兵  王朝阳  付志兵  唐永建
作者单位:1. 西南科技大学 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, 四川 绵阳 621010; 2. 中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
基金项目:国防科技基础研究基金,中国工程物理研究院科学技术发展基金,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
摘    要: 采用一种无模板的化学气相沉积法裂解金属有机物,以二茂铁为催化剂,二甲苯为碳源,利用单温炉加热装置在100 min内成功制备了2.7 mm超长定向碳纳米管阵列,生长速率高达27 μm·min-1。运用扫描电子显微镜、透射电子显微镜、拉曼光谱对定向碳纳米管阵列进行形貌观察和表征,结果表明:制得的碳纳米管阵列具有优越的定向性和管结构,并且石墨化程度高。给出了快速生长超长定向碳纳米管阵列的优化制备条件,结合表征结果讨论了碳纳米管阵列的生长机制,认为超长碳纳米管阵列采用的是一种催化剂固定不动的开口生长方式,碳源和催化剂的连续供应保证了超长碳纳米管阵列的快速生长。

关 键 词:定向  碳纳米管阵列  快速生长  机制  化学气相沉积
收稿时间:1900-01-01;

Preparation and growth mechanism of fast growing macroscopical long aligned carbon nanotube arrays
He Ting,Wang Bing,Wang Chaoyang,Fu Zhibing,Tang Yongjian.Preparation and growth mechanism of fast growing macroscopical long aligned carbon nanotube arrays[J].High Power Laser and Particle Beams,2011,23(6).
Authors:He Ting  Wang Bing  Wang Chaoyang  Fu Zhibing  Tang Yongjian
Institution:(1. State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials,Southwest University of Science and Technology, Mianyang 621010, China; 2. Research Center of Laser Fusion, CAEP, P. O. Box 919-987, Mianyang 621900, China)
Abstract:The macroscopical long aligned carbon nanotube arrays(ACNTs) with a thickness of 2.7 mm were prepared by the pyrolysis of organometallic mixtures in 100 min using ferrocene and xylene as catalyzer and carbon source. Using a chemical vapor deposited with no template, the grow rate reached 27 μm·min-1. This process was carried out in a single-furnace system. The products were characterized by scanning electron microscopy (SEM) , transmission electron microscopy(TEM) and Raman spectroscopy. The results indicate that ACNTs have good alignment and fine graphite form. Both the optimized process parameters and the formation mechanism of fast growing macroscopical long ACNTs were summarized. A formation mechanism which the catalyst remains stable and the open ends was adopted, the rapid growth
Keywords:carbon nanotube arrays  fast growing  mechanism  chemical vapor deposition
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