| 化学气相沉积合成碳包裹镍纳米晶的初步研究 |
| Preliminary Study of Nickel Nanocrystals Encapsulated in Carbon Shells by Chemical Vapor Deposition |
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| 摘要: |
| 关键词: 碳纳米管 石墨层包裹 镍纳米晶 |
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| Abstract: Nickel nanocrystals encapsulated in carbon shells were prepared by the large body knowledge developed for the growth of carbon nanotubes (CNTs), i.e. chemical vapor deposition. The products were characterized by transmission electron microscopy, XRD and FTIR. The results showed that the oxidization of CNT surface made it possible to interreact with nickel ions in solution. Ni-impregnated CNTs transformed into monocrystalline nickel nanoparticles supported on CNTs at 600 ℃ in nitrogen atmosphere. Subsequently, they would be covered with graphene layers during reaction with acetylene at 600 ℃. The formation mechanism has been preliminarily discussed on experimental results. |
| Keywords: carbon nanotubes carbon encapsulation nickel nanocrystals |
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| 程继鹏,张孝彬.化学气相沉积合成碳包裹镍纳米晶的初步研究[J].无机化学学报,2006,22(5):967-970. |
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