Synthesis of single-walled CNTs from CO with novel floating catalyst methods: The effect of CO2 and H2O

Albert G. Nasibulin, David P. Brown, Paula Queipo, David Gonzalez, Hua Jiang, Anton S. Anisimov, Esko I. Kauppinen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1 Citation (Scopus)

Abstract

Single-walled carbon nanotubes (CNTs) were synthesized from carbon monoxide and iron catalyst nanoparticles by two different floating catalyst methods. The catalyst particles were produced by physical vapor nucleation (PVD) 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 was demonstrated. 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 of the CNT synthesis from 890 °C to below 600 °C.
Original languageEnglish
Title of host publicationApplied Material Research at VTT
Subtitle of host publicationSymposium on Applied Materials
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages329-334
ISBN (Electronic)951-38-6312-3
ISBN (Print)951-38-6311-5
Publication statusPublished - 2006
MoE publication typeB3 Non-refereed article in conference proceedings
EventInternal Symposium on Applied Materials - Espoo, Finland
Duration: 8 Jun 20068 Jun 2006

Publication series

SeriesVTT Symposium
Number244
ISSN0357-9387

Conference

ConferenceInternal Symposium on Applied Materials
CountryFinland
CityEspoo
Period8/06/068/06/06

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  • Cite this

    Nasibulin, A. G., Brown, D. P., Queipo, P., Gonzalez, D., Jiang, H., Anisimov, A. S., & Kauppinen, E. I. (2006). Synthesis of single-walled CNTs from CO with novel floating catalyst methods: The effect of CO2 and H2O. In Applied Material Research at VTT: Symposium on Applied Materials (pp. 329-334). VTT Technical Research Centre of Finland. VTT Symposium, No. 244 http://www.vtt.fi/inf/pdf/symposiums/2006/S244.pdf