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 conferencePaper

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 languageEnglish (US)
Number of pages1
StatePublished - Dec 1 2002
Event29th International Symposium on Combustion - Sapporo, Japan
Duration: Jul 21 2002Jul 26 2002

Other

Other29th International Symposium on Combustion
CountryJapan
CitySapporo
Period7/21/027/26/02

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Vander Wal, R. L., Hall, L. J., & Berger, G. M. (2002). Aerosol flame synthesis of fe catalyzed single-walled carbon nanotubes and Ni catalyzed nanofibers. Paper presented at 29th International Symposium on Combustion, Sapporo, Japan.