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Nanoscience & Nanotechnology-Asia

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ISSN (Print): 2210-6812
ISSN (Online): 2210-6820

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Research Article

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

Author(s): Mohd. Asyadi Azam*, Nor Najihah Zulkapli and Mohamad Huzaifa Mohd. Azman

Volume 10, Issue 1, 2020

Page: [68 - 73] Pages: 6

DOI: 10.2174/2210681208666180730093851

Price: $65

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.

Graphical Abstract

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