Optimizing catalyst nanoparticle distribution to produce densely-packed carbon nanotube growth

The experimental parameters involved in the formation of the Ni catalytic nanoparticles on Si/SiO 2 substrates that seed carbon nanotube growth were investigated. It was found that after deposition of a nickel film on the substrate, the temperature and time of the thermal and reduction catalyst pre-...

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Bibliographic Details
Published in:Carbon (New York) 2009-07, Vol.47 (8), p.1989-2001
Main Authors: Terrado, E., Tacchini, I., Benito, A.M., Maser, W.K., Martínez, M.T.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Colloidal state and disperse state
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
General and physical chemistry
Materials science
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Physics
Specific materials
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The experimental parameters involved in the formation of the Ni catalytic nanoparticles on Si/SiO 2 substrates that seed carbon nanotube growth were investigated. It was found that after deposition of a nickel film on the substrate, the temperature and time of the thermal and reduction catalyst pre-treatment steps are crucial variables for optimized nanoparticle distribution with different average diameters, depending on the initial film thickness. Densely-packed carbon nanotube forests with interesting potential applications have been grown from this nanoparticle distribution.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2009.03.045