Corn-shape carbon nanofibers with dense graphite synthesized by microwave plasma-enhanced chemical vapor deposition
Corn-shape carbon nanofibers with dense graphite synthesized by microwave plasma-enhanced chemical vapor deposition
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微波等离子体增强化学气相沉积法合成致密石墨玉米状碳纳米纤维
DOI：
10.1063/1.1666998
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发表时间：
2004
影响因子：
4
通讯作者：
K. Kaneko
中科院分区：
文献类型：
--
作者：
Y. Hayashi;T. Tokunaga;T. Soga;T. Jimbo;Y. Yogata;S. Toh;K. Kaneko
以甲烷和氢气为原料，采用微波等离子体增强化学气相沉积法制备了无金属尖端的玉米状碳纳米纤维。采用偏压增强法在Ni/SiO_2/Si和Ni/Mo网状衬底上生长了碳纳米纤维，并用扫描电子显微镜、透射电子显微镜和拉曼光谱对其进行了分析。圆锥体由圆柱形纯石墨片组成，尖端和根部都是纳米级的。根据衬底温度等生长条件的不同，CCNF尖端的锥角分别为20°、39°和60°。
Corn-shape carbon nanofibers (CCNFs) with metal-free tips have been synthesized by a microwave plasma-enhanced chemical-vapor deposition method using CH4 and H2 gasses. The CCNFs were grown on Ni/SiO2/Si and Ni/Mo mesh substrates using a bias-enhanced growth method, and they were analyzed by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The cones are composed of cylindrical pure graphite sheets, and have nanometer-sized tips and roots. The tips’ apex angles of CCNFs have cone angles of 20°, 39°, and 60° depending on the growth conditions such as substrate temperature.