Temperature and carbon source effects on methane-air flame synthesis of CNTs

T. X. Li; K. Kuwana; K. Saito; H. Zhang; Z. Chen

doi:10.1016/j.proci.2008.06.143

Temperature and carbon source effects on methane-air flame synthesis of CNTs

T. X. Li
, K. Kuwana
, K. Saito
, H. Zhang
, Z. Chen

Producción científica: Conference article › revisión exhaustiva

41 Citas (Scopus)

Resumen

We have conducted experimental and numerical studies on flame synthesis of carbon nanotubes (CNTs) to investigate the effects of three key parameters - selective catalyst, temperature and available carbon sources - on CNT growth. Two different substrates were used to synthesize CNTs: Ni-alloy wire substrates to obtain curved and entangled CNTs and Si-substrates with porous anodic aluminum oxide (AAO) nanotemplates to grow well-aligned, self-assembled and size-controllable CNTs, each using two different types of laminar flames, co-flow and counter-flow methane-air diffusion flames. An appropriate temperature range in the synthesis region is essential for CNTs to grow on the substrates. Possible carbon sources for CNT growth were found to be the major species CO and those intermediate species C₂H₂, C ₂H₄, C₂H₆, and methyl radical CH₃. The major species H₂, CO₂ and H ₂O in the synthesis region are expected to activate the catalyst and help to promote catalyst reaction.

Idioma original	English
Páginas (desde-hasta)	1855-1861
Número de páginas	7
Publicación	Proceedings of the Combustion Institute
Volumen	32 II
N.º	2
DOI	https://doi.org/10.1016/j.proci.2008.06.143
Estado	Published - 2009
Evento	32nd International Symposium on Combustion - Montreal, QC, Canada Duración: ago 3 2008 → ago 8 2008

Nota bibliográfica

Funding Information:
This research was supported in part by the Kentucky Science and Technology Corp. (KSEF-148-502-04097), in part by the National Science Foundation (ECS 0304129), and in part by the Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171).

Financiación

This research was supported in part by the Kentucky Science and Technology Corp. (KSEF-148-502-04097), in part by the National Science Foundation (ECS 0304129), and in part by the Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171).

Financiadores	Número del financiador
Kentucky Science and Technology Corp.	KSEF-148-502-04097
National Science Foundation (NSF)	ECS 0304129
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-FG02-00ER4582, DE-FG26-04NT42171

ASJC Scopus subject areas

General Chemical Engineering
Mechanical Engineering
Physical and Theoretical Chemistry

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10.1016/j.proci.2008.06.143

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title = "Temperature and carbon source effects on methane-air flame synthesis of CNTs",

abstract = "We have conducted experimental and numerical studies on flame synthesis of carbon nanotubes (CNTs) to investigate the effects of three key parameters - selective catalyst, temperature and available carbon sources - on CNT growth. Two different substrates were used to synthesize CNTs: Ni-alloy wire substrates to obtain curved and entangled CNTs and Si-substrates with porous anodic aluminum oxide (AAO) nanotemplates to grow well-aligned, self-assembled and size-controllable CNTs, each using two different types of laminar flames, co-flow and counter-flow methane-air diffusion flames. An appropriate temperature range in the synthesis region is essential for CNTs to grow on the substrates. Possible carbon sources for CNT growth were found to be the major species CO and those intermediate species C2H2, C 2H4, C2H6, and methyl radical CH3. The major species H2, CO2 and H 2O in the synthesis region are expected to activate the catalyst and help to promote catalyst reaction.",

keywords = "Carbon nanotubes (CNTs), Carbon sources, Flame synthesis, Temperature effect",

author = "Li, \{T. X.\} and K. Kuwana and K. Saito and H. Zhang and Z. Chen",

note = "Funding Information: This research was supported in part by the Kentucky Science and Technology Corp. (KSEF-148-502-04097), in part by the National Science Foundation (ECS 0304129), and in part by the Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171).; 32nd International Symposium on Combustion ; Conference date: 03-08-2008 Through 08-08-2008",

year = "2009",

doi = "10.1016/j.proci.2008.06.143",

language = "English",

volume = "32 II",

pages = "1855--1861",

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TY - JOUR

T1 - Temperature and carbon source effects on methane-air flame synthesis of CNTs

AU - Li, T. X.

AU - Kuwana, K.

AU - Saito, K.

AU - Zhang, H.

AU - Chen, Z.

N1 - Funding Information: This research was supported in part by the Kentucky Science and Technology Corp. (KSEF-148-502-04097), in part by the National Science Foundation (ECS 0304129), and in part by the Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171).

PY - 2009

Y1 - 2009

N2 - We have conducted experimental and numerical studies on flame synthesis of carbon nanotubes (CNTs) to investigate the effects of three key parameters - selective catalyst, temperature and available carbon sources - on CNT growth. Two different substrates were used to synthesize CNTs: Ni-alloy wire substrates to obtain curved and entangled CNTs and Si-substrates with porous anodic aluminum oxide (AAO) nanotemplates to grow well-aligned, self-assembled and size-controllable CNTs, each using two different types of laminar flames, co-flow and counter-flow methane-air diffusion flames. An appropriate temperature range in the synthesis region is essential for CNTs to grow on the substrates. Possible carbon sources for CNT growth were found to be the major species CO and those intermediate species C2H2, C 2H4, C2H6, and methyl radical CH3. The major species H2, CO2 and H 2O in the synthesis region are expected to activate the catalyst and help to promote catalyst reaction.

AB - We have conducted experimental and numerical studies on flame synthesis of carbon nanotubes (CNTs) to investigate the effects of three key parameters - selective catalyst, temperature and available carbon sources - on CNT growth. Two different substrates were used to synthesize CNTs: Ni-alloy wire substrates to obtain curved and entangled CNTs and Si-substrates with porous anodic aluminum oxide (AAO) nanotemplates to grow well-aligned, self-assembled and size-controllable CNTs, each using two different types of laminar flames, co-flow and counter-flow methane-air diffusion flames. An appropriate temperature range in the synthesis region is essential for CNTs to grow on the substrates. Possible carbon sources for CNT growth were found to be the major species CO and those intermediate species C2H2, C 2H4, C2H6, and methyl radical CH3. The major species H2, CO2 and H 2O in the synthesis region are expected to activate the catalyst and help to promote catalyst reaction.

KW - Carbon nanotubes (CNTs)

KW - Carbon sources

KW - Flame synthesis

KW - Temperature effect

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U2 - 10.1016/j.proci.2008.06.143

DO - 10.1016/j.proci.2008.06.143

M3 - Conference article

AN - SCOPUS:61849090234

SN - 1540-7489

VL - 32 II

SP - 1855

EP - 1861

JO - Proceedings of the Combustion Institute

JF - Proceedings of the Combustion Institute

IS - 2

T2 - 32nd International Symposium on Combustion

Y2 - 3 August 2008 through 8 August 2008

ER -

Temperature and carbon source effects on methane-air flame synthesis of CNTs

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Nota bibliográfica

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ASJC Scopus subject areas

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