Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers

Randy Lee Vander Wal; Lee J. Hall; Gordon M. Berger

Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers

Randy Lee Vander Wal, Lee J. Hall, Gordon M. Berger

Research output: Contribution to conference › Paper › peer-review

Abstract

Two distinct types of carbon nanotubes were synthesized within a flame environment. In the first system, flame synthesis of single-walled carbon nanotubes (SWNT) was presented using Fe nanoparticles (introduced by thermal decomposition of an iron precursor compound) within a pyrolysis flame configuration. The preferential reactivity of the catalyst particle towards CO and not towards C₂H₂ was understood as reflecting nanoparticle restructuring, interactions between coadsorbates and reactant pyrolysis products. Iron exhibited preferential reactivity towards CO for SWNT catalysis with this reactivity being strongly dependent upon catalyst particle size within flame conditions. In the second system, flame synthesis of Ni catalyzed multi-walled carbon nanotubes was presented. Ni nanoparticles showed a high preferential reactivity towards C₂H₂ to form nanofibers. Original is an abstract.

Original language	English (US)
Number of pages	1
State	Published - Dec 1 2002
Event	29th International Symposium on Combustion - Sapporo, Japan Duration: Jul 21 2002 → Jul 26 2002

Other

Other	29th International Symposium on Combustion
Country/Territory	Japan
City	Sapporo
Period	7/21/02 → 7/26/02

All Science Journal Classification (ASJC) codes

General Engineering

Cite this

@conference{bbf25dced00d4b4d9d050a4d14471c46,

title = "Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers",

abstract = "Two distinct types of carbon nanotubes were synthesized within a flame environment. In the first system, flame synthesis of single-walled carbon nanotubes (SWNT) was presented using Fe nanoparticles (introduced by thermal decomposition of an iron precursor compound) within a pyrolysis flame configuration. The preferential reactivity of the catalyst particle towards CO and not towards C2H2 was understood as reflecting nanoparticle restructuring, interactions between coadsorbates and reactant pyrolysis products. Iron exhibited preferential reactivity towards CO for SWNT catalysis with this reactivity being strongly dependent upon catalyst particle size within flame conditions. In the second system, flame synthesis of Ni catalyzed multi-walled carbon nanotubes was presented. Ni nanoparticles showed a high preferential reactivity towards C2H2 to form nanofibers. Original is an abstract.",

author = "{Vander Wal}, {Randy Lee} and Hall, {Lee J.} and Berger, {Gordon M.}",

year = "2002",

month = dec,

day = "1",

language = "English (US)",

note = "29th International Symposium on Combustion ; Conference date: 21-07-2002 Through 26-07-2002",

}

TY - CONF

T1 - Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers

AU - Vander Wal, Randy Lee

AU - Hall, Lee J.

AU - Berger, Gordon M.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Two distinct types of carbon nanotubes were synthesized within a flame environment. In the first system, flame synthesis of single-walled carbon nanotubes (SWNT) was presented using Fe nanoparticles (introduced by thermal decomposition of an iron precursor compound) within a pyrolysis flame configuration. The preferential reactivity of the catalyst particle towards CO and not towards C2H2 was understood as reflecting nanoparticle restructuring, interactions between coadsorbates and reactant pyrolysis products. Iron exhibited preferential reactivity towards CO for SWNT catalysis with this reactivity being strongly dependent upon catalyst particle size within flame conditions. In the second system, flame synthesis of Ni catalyzed multi-walled carbon nanotubes was presented. Ni nanoparticles showed a high preferential reactivity towards C2H2 to form nanofibers. Original is an abstract.

AB - Two distinct types of carbon nanotubes were synthesized within a flame environment. In the first system, flame synthesis of single-walled carbon nanotubes (SWNT) was presented using Fe nanoparticles (introduced by thermal decomposition of an iron precursor compound) within a pyrolysis flame configuration. The preferential reactivity of the catalyst particle towards CO and not towards C2H2 was understood as reflecting nanoparticle restructuring, interactions between coadsorbates and reactant pyrolysis products. Iron exhibited preferential reactivity towards CO for SWNT catalysis with this reactivity being strongly dependent upon catalyst particle size within flame conditions. In the second system, flame synthesis of Ni catalyzed multi-walled carbon nanotubes was presented. Ni nanoparticles showed a high preferential reactivity towards C2H2 to form nanofibers. Original is an abstract.

UR - http://www.scopus.com/inward/record.url?scp=0036936071&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036936071&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0036936071

T2 - 29th International Symposium on Combustion

Y2 - 21 July 2002 through 26 July 2002

ER -

Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers

Abstract

Other

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this