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In Situ Synthesis of Carbon Nanotubes by Polymer Materials

C.W. Huang, L.C. Hsu and Y.Y. Li
CCU, TW

Keywords:
carbon nanotubes, in situ, polymer

Abstract:
Catalytically grown carbon nanotubes were prepared by in situ thermal decomposition of the polymer materials. Polymer material (PEG, polyethylene glycol) was employed as carbon source and nickel-based materials were used as catalytic precursors. These materials were well mixed and thermal treated at the desired temperature. The synthesis process includes the removal of solvent, dehydrogenation, thermal decomposition, carbonization, graphitization, and formation of carbon nanotubes by catalytic effects.. The results showed that carbon nanotubes can be formed without any additional hydrocarbon gases during the fabrication process at 750℃ in the nitrogen atmosphere. By the field emission–scanning electron microscopy (FE-SEM) and high resolution-transmission electron microscopy (HR-TEM) observation, it revealed that the carbon nanotubes possesses highly graphitic structures and the diameters were about 20-30nm.

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