Preparation of well-aligned carbon nanotubes by pyrolysis of phenolic resin in anodic alumina pores |
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Authors: | Ke-Zhi Li Jian Wei He-Jun Li Yu-Lei Zhang Chuang Wang Dang-She Hou |
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Institution: | National Key Laboratory of Thermostructure Composite Materials, Northwestern Polytechnical University, Xi’an Shaanxi 710072, PR China |
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Abstract: | Well-aligned carbon nanotubes (CNTs) of high quality were synthesized by pyrolysis of phenolic resin at 800 °C in anodic alumina oxide (AAO) pores under argon protection. The innocuous source materials and safe operational conditions permit this method to synthesize well-aligned CNTs in large-scale and low cost. The formation mechanism of the synthesized CNTs is also proposed in this work by a series of visual sketches and is proved with obvious evidence. Firstly, phenolic resin nanotubes form in the template pores through the evaporation of solvent. Heat treatment then transfers these tubes into CNTs. |
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Keywords: | Carbon nanotubes Resins Pyrolysis Electron microscopy |
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