Chemical vapor deposition of pyrolytic carbon on carbon nanotubes: Part 1. Synthesis and morphology. Allouche, H., Monthioux, M., & Jacobsen, R. L Carbon, 41(15):2897–2912, 2003. ![Chemical vapor deposition of pyrolytic carbon on carbon nanotubes: Part 1. Synthesis and morphology [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex The chemical vapor deposition of the pyrocarbon from a CH4+H2 mixture is investigated using nanofilamentous substrates. The process consists of growing carbon nanotubes via a catalytic process, which then are thickened by pyrolytic carbon deposition to reach diameters in the nanometer to micrometer range. A key characteristic of the experimental reactor used was the long length of its isothermal zone, preceded (and followed) by a low thermal gradient zone. This allowed us to investigate the role of the variation of the local gas phase composition, which depends on the post-cracking secondary reactions, and on the quantity and quality of the deposited carbon. The ‘time of flight’ of the reactive species was found to be a leading parameter in the pyrolytic carbon deposition process. Various nanometric and micrometric morphologies, several of which are new, were synthesised and found constituted with an association of different sub-morphologies. The various morphologies, that can be sorted following a factor of morphological complexity, were investigated by scanning electron microscopy.
@article{allouche_chemical_2003,
title = {Chemical vapor deposition of pyrolytic carbon on carbon nanotubes: {Part} 1. {Synthesis} and morphology},
volume = {41},
issn = {0008-6223},
shorttitle = {Chemical vapor deposition of pyrolytic carbon on carbon nanotubes},
url = {http://www.sciencedirect.com/science/article/pii/S0008622303003294},
doi = {10.1016/S0008-6223(03)00329-4},
abstract = {The chemical vapor deposition of the pyrocarbon from a CH4+H2 mixture is investigated using nanofilamentous substrates. The process consists of growing carbon nanotubes via a catalytic process, which then are thickened by pyrolytic carbon deposition to reach diameters in the nanometer to micrometer range. A key characteristic of the experimental reactor used was the long length of its isothermal zone, preceded (and followed) by a low thermal gradient zone. This allowed us to investigate the role of the variation of the local gas phase composition, which depends on the post-cracking secondary reactions, and on the quantity and quality of the deposited carbon. The ‘time of flight’ of the reactive species was found to be a leading parameter in the pyrolytic carbon deposition process. Various nanometric and micrometric morphologies, several of which are new, were synthesised and found constituted with an association of different sub-morphologies. The various morphologies, that can be sorted following a factor of morphological complexity, were investigated by scanning electron microscopy.},
number = {15},
urldate = {2013-01-09},
journal = {Carbon},
author = {Allouche, Hatem and Monthioux, Marc and Jacobsen, Ronald L},
year = {2003},
keywords = {A. Vapor grown carbon, B. Chemical vapor deposition, C. Scanning electron microscopy, Catalytically grown carbon, carbon nanotubes},
pages = {2897--2912},
}
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