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Active Cobalt Catalyst for Carbon Powder Growth: Sol-gel Process and Alcohol Catalytic CVD Technique

[ Vol. 10 , Issue. 1 ]

Author(s):

Mohd. Asyadi Azam*, Nor Najihah Zulkapli and Mohamad Huzaifa Mohd. Azman   Pages 68 - 73 ( 6 )

Abstract:


Introduction: The unique properties of carbon nanotubes trigger a lot of ideas to study the ability of the material in many fields.

Experimental: The research started with the preparation of cobalt catalyst by using the sol-gel method, which used cobalt acetate tetrahydrate and 2-amino ethanol solvent, followed by the actual growth of carbon nanotube by using the prepared catalyst in alcohol catalytic CVD.

Results: The crystal structure, microstructure, and size of particles of the resulting cobalt-based powders were characterized by using X-ray Diffraction, Optical Microscopy, and Particle Size Analyzer, followed by, carbon nanotube growth at 700, 750, 800, and 850°C, where other parameters were fixed in order to determine the effect of CVD processing and temperature on the quality of resulting carbonbased materials. The graphitic structure of the carbon-based materials was analyzed by using Raman Spectroscopy.

Conclusion: It was found that the optimum CVD processing temperature was 850°C with IG/ID ratio of 1.052.

Keywords:

Cobalt catalyst, sol-gel method, alcohol catalytic CVD, carbon powder, carbom nanotube, graphene sheets.

Affiliation:

Carbon Research Technology Research Group, Advanced Manufacturing Centre, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Carbon Research Technology Research Group, Advanced Manufacturing Centre, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Carbon Research Technology Research Group, Advanced Manufacturing Centre, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka

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