Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide

A. S. Anisimov, Albert G. Nasibulin (Corresponding Author), Hua Jiang, P. Launois, J. Cambedouzou, S. D. Shandakov, Esko I. Kauppinen (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The single-walled carbon nanotubes (SWCNTs) were synthesized by the carbon monoxide disproportionation reaction on Fe catalyst particles formed by ferrocene vapor decomposition in a laminar flow aerosol (floating catalyst) reactor. On the basis of in situ sampling of the product collected at different locations in the reactor, kinetics of the SWCNT growth and catalyst particle crystallinity were studied. Catalyst particles captured before SWCNT nucleation as well as inactive particles were determined to have cementite (Fe3C) phase, while particles with γ- and α-Fe phases were found to be embedded in the SCWNTs. The growth rate in the temperature range from 804 to 915 °C was respectively varied from 0.67 to 2.7 μm/s. The growth rate constant can be described by an Arrhenius dependence with an activation energy of Ea = 1.39 eV, which was attributed to the carbon diffusion in solid iron particles. CNT growth termination was explained by solid–liquid phase transition in the catalyst particles. A high temperature gradient in the reactor was found to not have any effect on the diameter during the SWCNT growth and as a result on the chirality of the growing SWCNTs.

Original languageEnglish
Pages (from-to)380-388
Number of pages9
JournalCarbon
Volume48
Issue number2
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

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Single-walled carbon nanotubes (SWCN)
Carbon Monoxide
Carbon monoxide
Vapors
Decomposition
Catalysts
Diffusion in solids
Chirality
Aerosols
Laminar flow
Thermal gradients
Rate constants
Nucleation
Carbon
Iron
Activation energy
Phase transitions
ferrocene
Sampling
Kinetics

Cite this

Anisimov, A. S., Nasibulin, A. G., Jiang, H., Launois, P., Cambedouzou, J., Shandakov, S. D., & Kauppinen, E. I. (2010). Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide. Carbon, 48(2), 380-388. https://doi.org/10.1016/j.carbon.2009.09.040
Anisimov, A. S. ; Nasibulin, Albert G. ; Jiang, Hua ; Launois, P. ; Cambedouzou, J. ; Shandakov, S. D. ; Kauppinen, Esko I. / Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide. In: Carbon. 2010 ; Vol. 48, No. 2. pp. 380-388.
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abstract = "The single-walled carbon nanotubes (SWCNTs) were synthesized by the carbon monoxide disproportionation reaction on Fe catalyst particles formed by ferrocene vapor decomposition in a laminar flow aerosol (floating catalyst) reactor. On the basis of in situ sampling of the product collected at different locations in the reactor, kinetics of the SWCNT growth and catalyst particle crystallinity were studied. Catalyst particles captured before SWCNT nucleation as well as inactive particles were determined to have cementite (Fe3C) phase, while particles with γ- and α-Fe phases were found to be embedded in the SCWNTs. The growth rate in the temperature range from 804 to 915 °C was respectively varied from 0.67 to 2.7 μm/s. The growth rate constant can be described by an Arrhenius dependence with an activation energy of Ea = 1.39 eV, which was attributed to the carbon diffusion in solid iron particles. CNT growth termination was explained by solid–liquid phase transition in the catalyst particles. A high temperature gradient in the reactor was found to not have any effect on the diameter during the SWCNT growth and as a result on the chirality of the growing SWCNTs.",
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Anisimov, AS, Nasibulin, AG, Jiang, H, Launois, P, Cambedouzou, J, Shandakov, SD & Kauppinen, EI 2010, 'Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide', Carbon, vol. 48, no. 2, pp. 380-388. https://doi.org/10.1016/j.carbon.2009.09.040

Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide. / Anisimov, A. S.; Nasibulin, Albert G. (Corresponding Author); Jiang, Hua; Launois, P.; Cambedouzou, J.; Shandakov, S. D.; Kauppinen, Esko I. (Corresponding Author).

In: Carbon, Vol. 48, No. 2, 2010, p. 380-388.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Mechanistic investigations of single-walled carbon nanotube synthesis by ferrocene vapor decomposition in carbon monoxide

AU - Anisimov, A. S.

AU - Nasibulin, Albert G.

AU - Jiang, Hua

AU - Launois, P.

AU - Cambedouzou, J.

AU - Shandakov, S. D.

AU - Kauppinen, Esko I.

PY - 2010

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N2 - The single-walled carbon nanotubes (SWCNTs) were synthesized by the carbon monoxide disproportionation reaction on Fe catalyst particles formed by ferrocene vapor decomposition in a laminar flow aerosol (floating catalyst) reactor. On the basis of in situ sampling of the product collected at different locations in the reactor, kinetics of the SWCNT growth and catalyst particle crystallinity were studied. Catalyst particles captured before SWCNT nucleation as well as inactive particles were determined to have cementite (Fe3C) phase, while particles with γ- and α-Fe phases were found to be embedded in the SCWNTs. The growth rate in the temperature range from 804 to 915 °C was respectively varied from 0.67 to 2.7 μm/s. The growth rate constant can be described by an Arrhenius dependence with an activation energy of Ea = 1.39 eV, which was attributed to the carbon diffusion in solid iron particles. CNT growth termination was explained by solid–liquid phase transition in the catalyst particles. A high temperature gradient in the reactor was found to not have any effect on the diameter during the SWCNT growth and as a result on the chirality of the growing SWCNTs.

AB - The single-walled carbon nanotubes (SWCNTs) were synthesized by the carbon monoxide disproportionation reaction on Fe catalyst particles formed by ferrocene vapor decomposition in a laminar flow aerosol (floating catalyst) reactor. On the basis of in situ sampling of the product collected at different locations in the reactor, kinetics of the SWCNT growth and catalyst particle crystallinity were studied. Catalyst particles captured before SWCNT nucleation as well as inactive particles were determined to have cementite (Fe3C) phase, while particles with γ- and α-Fe phases were found to be embedded in the SCWNTs. The growth rate in the temperature range from 804 to 915 °C was respectively varied from 0.67 to 2.7 μm/s. The growth rate constant can be described by an Arrhenius dependence with an activation energy of Ea = 1.39 eV, which was attributed to the carbon diffusion in solid iron particles. CNT growth termination was explained by solid–liquid phase transition in the catalyst particles. A high temperature gradient in the reactor was found to not have any effect on the diameter during the SWCNT growth and as a result on the chirality of the growing SWCNTs.

U2 - 10.1016/j.carbon.2009.09.040

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