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| 催化剂对碳纳米管产率及质量的影响 | |
| 引用本文： | 丁佩,张红瑞,郭新勇,杜祖亮,梁二军.催化剂对碳纳米管产率及质量的影响[J].光散射学报,2003,15(1):42-47. |
| 作者姓名： | 丁佩 张红瑞 郭新勇 杜祖亮 梁二军 |
| 作者单位： | 1. 郑州大学物理工程学院,郑州,450052;郑州航空工业管理学院应用科学系,郑州,450005 2. 郑州大学物理工程学院,郑州,450052 3. 河南大学特种功能材料实验室,开封,475001 |
| 基金项目： | 河南省高校创新人才基金资助项目 (批准号 :1 9999 1 2 5) |
| 摘 要： | 本文研究了添加钴/二茂铁、镍/二茂铁、钴、镍/钴不同催化剂对高温热解法制备碳纳米管质量、产率等的影响。高分辨率透射电镜图象显示在800℃左右,镍/二茂铁、钴/二茂铁和钴催化条件下,有多壁碳纳米管生成,而用镍/钴作催化剂时,只有直径在0 5μm左右,长度十几个微米的非晶态棒状物生成。通过对生成碳纳米管的质量和产量进行比较,催化剂的催化活性满足二茂铁>钴>镍。简单分析了在碳源高温热解环境下不同金属催化剂的性能差异,并对不同催化条件下生成物的拉曼光谱进行了分析。 |
| 关 键 词： | 碳纳米管 高温热解 催化 生长机理 透射电镜 拉曼光谱 |
| 文章编号： | 1004-5929(2003)01-0042-06 |
| 收稿时间： | 2002/10/18 |
| 修稿时间： | 2002年10月18 |
The Effect of Different Catalysts on the Quality and Yield of the Carbon Nanotubes Synthesized by Thermal Decomposition |
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| Abstract: | The effect of cobalt/ferrocene, nickel/ferrocene, cobalt and nickel/cobalt catalysts on the quality and yield of carbon nanotubes produced by thermal decomposition has been studied. TEM images reveal that carbon nanotubes can be catalyzed by Ni/ferrocene, Co/ferrocene and Co under about 800℃, while nothing but amorphous carbon rods with 0.5 μm in diameter and more than 10 μm in length are generated when Ni/Co were used as catalysts. The catalysts affect the quality and yield of the carbon nanotubes in the order: ferrocene>Co>Ni. The difference of different catalysts on the growth of the carbon nanotubes by thermal decomposition is discussed and their Raman spectra are studied. |
| Keywords: | Carbon nanotubes Thermal decomposition Catalyst Growth mechanism TEM Raman Spectroscopy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |