Upscaling potential of the CVD stacking growth method to produce dimensionally-controlled and catalyst-free multi-walled carbon nanotubes

Multi-walled CNTs (MWCNTs) with structural characteristics optimised for bio-applications have been produced using a catalyst-supported chemical vapour deposition (CVD) method. The upscale potential of the process was demonstrated by combining classical semi-continuous and stacked-growth modes. The...

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Bibliographic Details
Published in:Carbon (New York) 2012-08, Vol.50 (10), p.3585-3606
Main Authors: Mata, D., Silva, R.M., Fernandes, A.J.S., Oliveira, F.J., Costa, P.M.F.J., Silva, R.F.
Format: Article
Language:English
Subjects:
Carbon
Catalysis
Catalysts
Chemical vapor deposition
Chemistry
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
General and physical chemistry
Materials science
Multi wall carbon nanotubes
Physics
Purification
Specific materials
Stacking
Strata
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Multi-walled CNTs (MWCNTs) with structural characteristics optimised for bio-applications have been produced using a catalyst-supported chemical vapour deposition (CVD) method. The upscale potential of the process was demonstrated by combining classical semi-continuous and stacked-growth modes. The vertically aligned MWCNT films thus obtained were multi-layered with five continuous strata of well-structured nanotubes. Following gentle disentanglement, the stacks were converted to individual MWCNTs with short dimensions (a final length and diameter of ∼1.2μm and ∼12nm) and almost catalyst-free (
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2012.03.030