Carbon nanotube synthesis on catalytic metal alloys in methane/air counterflow diffusion flames

Fusheng Xu, Hong Zhao, Stephen Tse

Research output: Contribution to journalConference article

36 Citations (Scopus)

Abstract

Various morphologies of multi-walled carbon nanotubes (MWNTs) are grown catalytically on metalalloy probes in counterflow diffusion flames using methane as fuel. Carbon nanotube (CNT) properties and morphologies are investigated as functions of local gas-phase temperatures, C-related species concentrations (e.g. C2H2, CO), sampling positions, C2H 2 adding to the fuel, and metal-alloy compositions (i.e., Fe, Fe/Cr, Ni/Cu, Ni/Ti, Ni/Cr, Ni/Cr/Fe). MWNTs grow optimally in non-sooty regions of the flames. C2H2 addition is found to promote direct synthesis of vertically well-aligned MWNTs with uniform diameters from Ni/Cr/Fe and Ni/Ti alloys.

Original languageEnglish (US)
Pages (from-to)1839-1847
Number of pages9
JournalProceedings of the Combustion Institute
Volume31 II
DOIs
StatePublished - Sep 24 2007
Event31st International Symposium on Combustion - Heidelberg, Germany
Duration: Aug 5 2006Aug 11 2006

Fingerprint

Carbon Nanotubes
counterflow
diffusion flames
Methane
Carbon nanotubes
methane
Metals
carbon nanotubes
air
synthesis
Air
metals
Carbon Monoxide
flames
Gases
sampling
vapor phases
Sampling
probes
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

@article{259e15a2a4504e4e97164b9a00cf5d06,
title = "Carbon nanotube synthesis on catalytic metal alloys in methane/air counterflow diffusion flames",
abstract = "Various morphologies of multi-walled carbon nanotubes (MWNTs) are grown catalytically on metalalloy probes in counterflow diffusion flames using methane as fuel. Carbon nanotube (CNT) properties and morphologies are investigated as functions of local gas-phase temperatures, C-related species concentrations (e.g. C2H2, CO), sampling positions, C2H 2 adding to the fuel, and metal-alloy compositions (i.e., Fe, Fe/Cr, Ni/Cu, Ni/Ti, Ni/Cr, Ni/Cr/Fe). MWNTs grow optimally in non-sooty regions of the flames. C2H2 addition is found to promote direct synthesis of vertically well-aligned MWNTs with uniform diameters from Ni/Cr/Fe and Ni/Ti alloys.",
author = "Fusheng Xu and Hong Zhao and Stephen Tse",
year = "2007",
month = "9",
day = "24",
doi = "https://doi.org/10.1016/j.proci.2006.08.062",
language = "English (US)",
volume = "31 II",
pages = "1839--1847",
journal = "Proceedings of the Combustion Institute",
issn = "1540-7489",
publisher = "Elsevier Limited",

}

Carbon nanotube synthesis on catalytic metal alloys in methane/air counterflow diffusion flames. / Xu, Fusheng; Zhao, Hong; Tse, Stephen.

In: Proceedings of the Combustion Institute, Vol. 31 II, 24.09.2007, p. 1839-1847.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Carbon nanotube synthesis on catalytic metal alloys in methane/air counterflow diffusion flames

AU - Xu, Fusheng

AU - Zhao, Hong

AU - Tse, Stephen

PY - 2007/9/24

Y1 - 2007/9/24

N2 - Various morphologies of multi-walled carbon nanotubes (MWNTs) are grown catalytically on metalalloy probes in counterflow diffusion flames using methane as fuel. Carbon nanotube (CNT) properties and morphologies are investigated as functions of local gas-phase temperatures, C-related species concentrations (e.g. C2H2, CO), sampling positions, C2H 2 adding to the fuel, and metal-alloy compositions (i.e., Fe, Fe/Cr, Ni/Cu, Ni/Ti, Ni/Cr, Ni/Cr/Fe). MWNTs grow optimally in non-sooty regions of the flames. C2H2 addition is found to promote direct synthesis of vertically well-aligned MWNTs with uniform diameters from Ni/Cr/Fe and Ni/Ti alloys.

AB - Various morphologies of multi-walled carbon nanotubes (MWNTs) are grown catalytically on metalalloy probes in counterflow diffusion flames using methane as fuel. Carbon nanotube (CNT) properties and morphologies are investigated as functions of local gas-phase temperatures, C-related species concentrations (e.g. C2H2, CO), sampling positions, C2H 2 adding to the fuel, and metal-alloy compositions (i.e., Fe, Fe/Cr, Ni/Cu, Ni/Ti, Ni/Cr, Ni/Cr/Fe). MWNTs grow optimally in non-sooty regions of the flames. C2H2 addition is found to promote direct synthesis of vertically well-aligned MWNTs with uniform diameters from Ni/Cr/Fe and Ni/Ti alloys.

UR - http://www.scopus.com/inward/record.url?scp=34548759538&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548759538&partnerID=8YFLogxK

U2 - https://doi.org/10.1016/j.proci.2006.08.062

DO - https://doi.org/10.1016/j.proci.2006.08.062

M3 - Conference article

VL - 31 II

SP - 1839

EP - 1847

JO - Proceedings of the Combustion Institute

JF - Proceedings of the Combustion Institute

SN - 1540-7489

ER -