Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes

O. Guellati; I. Janowska; D. Bégin; C. Pham-Huu; M. Guerioune; Z. Mekhalif; J. Delhalle; S. Moldovan; O. Ersen

doi:10.1016/j.apcata.2012.02.036

Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes

O. Guellati, I. Janowska, D. Bégin, C. Pham-Huu, M. Guerioune, Z. Mekhalif, J. Delhalle, S. Moldovan, O. Ersen

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Abstract

The vertically aligned multi-walled carbon nanotubes (VA-MWNTs) were synthesized by a catalytic chemical vapor deposition (CCVD) technique, using ferrocene as an iron catalyst precursor and toluene/ethanol mixture with different ratio as a carbon source/etching agent, in the presence of H . The growth rate, efficiency and the structure of the synthesized tubes were investigated. The CNTs growth rate and quality of tubes significantly improve up to 9 vol.% of ethanol whereas a negative influence was observed for higher ethanol concentration (>17 vol.%). Low ethanol content in the reaction mixture (5 vol.%) results in the highest volume density of the tubes within the array along with highest specific surface area. The synergetic effect of EtOH/hydrogen on the growth rate of VA-MWNTs was observed as well.

Original language	English
Pages (from-to)	7-14
Number of pages	8
Journal	Applied catalysis. A: General
Volume	423-424
DOIs	https://doi.org/10.1016/j.apcata.2012.02.036
Publication status	Published - 7 May 2012

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10.1016/j.apcata.2012.02.036

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title = "Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes",

abstract = "The vertically aligned multi-walled carbon nanotubes (VA-MWNTs) were synthesized by a catalytic chemical vapor deposition (CCVD) technique, using ferrocene as an iron catalyst precursor and toluene/ethanol mixture with different ratio as a carbon source/etching agent, in the presence of H . The growth rate, efficiency and the structure of the synthesized tubes were investigated. The CNTs growth rate and quality of tubes significantly improve up to 9 vol.% of ethanol whereas a negative influence was observed for higher ethanol concentration (>17 vol.%). Low ethanol content in the reaction mixture (5 vol.%) results in the highest volume density of the tubes within the array along with highest specific surface area. The synergetic effect of EtOH/hydrogen on the growth rate of VA-MWNTs was observed as well.",

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T1 - Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes

AU - Guellati, O.

AU - Janowska, I.

AU - Bégin, D.

AU - Pham-Huu, C.

AU - Guerioune, M.

AU - Mekhalif, Z.

AU - Delhalle, J.

AU - Moldovan, S.

AU - Ersen, O.

PY - 2012/5/7

Y1 - 2012/5/7

N2 - The vertically aligned multi-walled carbon nanotubes (VA-MWNTs) were synthesized by a catalytic chemical vapor deposition (CCVD) technique, using ferrocene as an iron catalyst precursor and toluene/ethanol mixture with different ratio as a carbon source/etching agent, in the presence of H . The growth rate, efficiency and the structure of the synthesized tubes were investigated. The CNTs growth rate and quality of tubes significantly improve up to 9 vol.% of ethanol whereas a negative influence was observed for higher ethanol concentration (>17 vol.%). Low ethanol content in the reaction mixture (5 vol.%) results in the highest volume density of the tubes within the array along with highest specific surface area. The synergetic effect of EtOH/hydrogen on the growth rate of VA-MWNTs was observed as well.

AB - The vertically aligned multi-walled carbon nanotubes (VA-MWNTs) were synthesized by a catalytic chemical vapor deposition (CCVD) technique, using ferrocene as an iron catalyst precursor and toluene/ethanol mixture with different ratio as a carbon source/etching agent, in the presence of H . The growth rate, efficiency and the structure of the synthesized tubes were investigated. The CNTs growth rate and quality of tubes significantly improve up to 9 vol.% of ethanol whereas a negative influence was observed for higher ethanol concentration (>17 vol.%). Low ethanol content in the reaction mixture (5 vol.%) results in the highest volume density of the tubes within the array along with highest specific surface area. The synergetic effect of EtOH/hydrogen on the growth rate of VA-MWNTs was observed as well.

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SP - 7

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JO - Applied catalysis. A: General

JF - Applied catalysis. A: General

ER -

Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes

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Influence of ethanol in the presence of H2 on the catalytic growth of vertically aligned carbon nanotubes

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