An essential role of CO2 and H2O during single-walled CNT synthesis from carbon monoxide

Albert Nasibulin, David Brown, Paula Queipo, David Gonzalez, Hua Jiang, Esko I. Kauppinen (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Single-walled carbon nanotubes (CNTs) were synthesized from carbon monoxide and iron catalyst nanoparticles by two different aerosol methods. The catalyst particles were produced by physical vapor nucleation using a resistively heated iron wire (hot wire generator) and by thermal decomposition of ferrocene vapor. The essential role of etching agents (CO2 and H2O) in the CNT formation process was demonstrated. An addition of small amounts of CO2 and H2O vapor in the reactor resulted in an increase in CNT length. Also, the CO2 introduction was found to decrease the minimum temperature for CNT synthesis from 890 °C to below 600 °C.
Original languageEnglish
Pages (from-to)179-184
Number of pages6
JournalChemical Physics Letters
Volume417
Issue number1-3
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
Carbon Monoxide
carbon monoxide
carbon nanotubes
Vapors
vapors
synthesis
Iron
Wire
Catalysts
wire
Aerosols
iron
catalysts
Etching
Pyrolysis
Nucleation
Nanoparticles
thermal decomposition

Keywords

  • carbon nanotubes
  • iron catalyst nanoparticles
  • aerosol methods
  • vapors

Cite this

Nasibulin, A., Brown, D., Queipo, P., Gonzalez, D., Jiang, H., & Kauppinen, E. I. (2006). An essential role of CO2 and H2O during single-walled CNT synthesis from carbon monoxide. Chemical Physics Letters, 417(1-3), 179-184. https://doi.org/10.1016/j.cplett.2005.10.022
Nasibulin, Albert ; Brown, David ; Queipo, Paula ; Gonzalez, David ; Jiang, Hua ; Kauppinen, Esko I. / An essential role of CO2 and H2O during single-walled CNT synthesis from carbon monoxide. In: Chemical Physics Letters. 2006 ; Vol. 417, No. 1-3. pp. 179-184.
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Nasibulin, A, Brown, D, Queipo, P, Gonzalez, D, Jiang, H & Kauppinen, EI 2006, 'An essential role of CO2 and H2O during single-walled CNT synthesis from carbon monoxide', Chemical Physics Letters, vol. 417, no. 1-3, pp. 179-184. https://doi.org/10.1016/j.cplett.2005.10.022

An essential role of CO2 and H2O during single-walled CNT synthesis from carbon monoxide. / Nasibulin, Albert; Brown, David; Queipo, Paula; Gonzalez, David; Jiang, Hua; Kauppinen, Esko I. (Corresponding Author).

In: Chemical Physics Letters, Vol. 417, No. 1-3, 2006, p. 179-184.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Nasibulin, Albert

AU - Brown, David

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AU - Gonzalez, David

AU - Jiang, Hua

AU - Kauppinen, Esko I.

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AB - Single-walled carbon nanotubes (CNTs) were synthesized from carbon monoxide and iron catalyst nanoparticles by two different aerosol methods. The catalyst particles were produced by physical vapor nucleation using a resistively heated iron wire (hot wire generator) and by thermal decomposition of ferrocene vapor. The essential role of etching agents (CO2 and H2O) in the CNT formation process was demonstrated. An addition of small amounts of CO2 and H2O vapor in the reactor resulted in an increase in CNT length. Also, the CO2 introduction was found to decrease the minimum temperature for CNT synthesis from 890 °C to below 600 °C.

KW - carbon nanotubes

KW - iron catalyst nanoparticles

KW - aerosol methods

KW - vapors

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