| 多壁碳纳米管包裹Fe3C单晶纳米线的初步研究 |
| Preliminary Study of Single Crystal Iron Carbide Nanowires Encapsulated in Multiwalled Carbon Nanotubes |
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| 摘要: |
| 关键词: 碳纳米管 选区电子衍射 热重分析 |
| 基金项目: |
| Abstract: Multi-walled carbon nanotubes were fabricated by chemical vapor deposition with acetylene as carbon source and titanate modified palygorskite as catalyst at high temperature. A part of as-grown nanotubes was partially filled with foreign material in the shape of nanowire by transmission electron microscopy (TEM) observations. The en-capsulated nanowires was single crystalline iron carbide upon selected area electron diffraction(SAED)patterns and X-ray energy dispersive spectrum (EDS) results. Thermal gravimetric analyses (TGA) on the as-grown samples indicated that the yield of carbon nanotubes was largest at 750℃ and the content of amorphous carbon decreased with increasing temperature. Furthermore， the growth mechanism was discussed on the experimental results in the paper. |
| Keywords: carbon nanotubes selected area electron diffraction thermal gravimetric analysis |
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| 程继鹏,张孝彬,叶 瑛,刘 芙,涂江平,陈长聘.多壁碳纳米管包裹Fe3C单晶纳米线的初步研究[J].无机化学学报,2003,19(11):1269-1272. |
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