引用本文:
崔屾, 王雷, 乔亚莉, 崔兰. 焙烧法纯化多壁碳纳米管[J]. 应用化学,
2000, 17(4): 417-419.
Citation: CUI Shen, WANG Lei, QIAO Ya-Li, CUI Lan. Purification of Multi-wall Carbon Nanotubes by Calcining Method[J]. Chinese Journal of Applied Chemistry, 2000, 17(4): 417-419.
Citation: CUI Shen, WANG Lei, QIAO Ya-Li, CUI Lan. Purification of Multi-wall Carbon Nanotubes by Calcining Method[J]. Chinese Journal of Applied Chemistry, 2000, 17(4): 417-419.
焙烧法纯化多壁碳纳米管
English
Purification of Multi-wall Carbon Nanotubes by Calcining Method
Abstract:
The Multi-wall Carbon Nanotubes (MWNTs) were prepared by catalytic deco-mposition of methane at 600℃. The raw products of MWNTs were heated for different time in the air at 500℃. The qualitative and semi-quantitative phase analyses of the samples were performed by XRD measurements. The morphology of the samples were observed by transmission electron microscope and their specific surface areas were measured. After the MWNTs were heated for 4 hours, their walls became clean and thinner, i.e., the inner diameters became larger and the outer ones became smaller. And their dispersing extent was improved. But calcining method could not eliminate the metals and their oxides existing in the samples.
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Key words:
- multi-walls carbon nanotube
- / calcining method
- / purification
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