Abstract
Flame synthesis enables the mass-production of carbon black and fullerene but not of carbon nanotubes (CNTs) due to the narrow window for producing CNTs while preventing tar generation. We report a flame-assisted chemical vapor deposition method, in which a premixed flame is used for the instantaneous generation of floating catalysts, the heating of the gas, and the growth of single-wall CNTs (SWCNTs) using a furnace at the downstream of the flame. This method yields high quality SWCNTs with a small average diameter of 0.96 nm, a small diameter deviation of 0.21 nm, and a high carbon purity of ∼90 wt%. Multiple parameters affect the SWCNT production significantly, which are investigated systematically and optimized carefully. The effects and possible mechanisms of the key parameters are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Carbon |
| Volume | 138 |
| DOIs | |
| Publication status | Published - 2018 Nov 1 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Flame-assisted chemical vapor deposition for continuous gas-phase synthesis of 1-nm-diameter single-wall carbon nanotubes. / Okada, Shohei; Sugime, Hisashi; Hasegawa, Kei; Ohsawa, Toshio; Kataoka, Shohei; Sugiura, Hiroki; Noda, Suguru.
In: Carbon, Vol. 138, 01.11.2018, p. 1-7.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Flame-assisted chemical vapor deposition for continuous gas-phase synthesis of 1-nm-diameter single-wall carbon nanotubes
AU - Okada, Shohei
AU - Sugime, Hisashi
AU - Hasegawa, Kei
AU - Ohsawa, Toshio
AU - Kataoka, Shohei
AU - Sugiura, Hiroki
AU - Noda, Suguru
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Flame synthesis enables the mass-production of carbon black and fullerene but not of carbon nanotubes (CNTs) due to the narrow window for producing CNTs while preventing tar generation. We report a flame-assisted chemical vapor deposition method, in which a premixed flame is used for the instantaneous generation of floating catalysts, the heating of the gas, and the growth of single-wall CNTs (SWCNTs) using a furnace at the downstream of the flame. This method yields high quality SWCNTs with a small average diameter of 0.96 nm, a small diameter deviation of 0.21 nm, and a high carbon purity of ∼90 wt%. Multiple parameters affect the SWCNT production significantly, which are investigated systematically and optimized carefully. The effects and possible mechanisms of the key parameters are discussed.
AB - Flame synthesis enables the mass-production of carbon black and fullerene but not of carbon nanotubes (CNTs) due to the narrow window for producing CNTs while preventing tar generation. We report a flame-assisted chemical vapor deposition method, in which a premixed flame is used for the instantaneous generation of floating catalysts, the heating of the gas, and the growth of single-wall CNTs (SWCNTs) using a furnace at the downstream of the flame. This method yields high quality SWCNTs with a small average diameter of 0.96 nm, a small diameter deviation of 0.21 nm, and a high carbon purity of ∼90 wt%. Multiple parameters affect the SWCNT production significantly, which are investigated systematically and optimized carefully. The effects and possible mechanisms of the key parameters are discussed.
UR - http://www.scopus.com/inward/record.url?scp=85049302699&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85049302699&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2018.05.060
DO - 10.1016/j.carbon.2018.05.060
M3 - Article
AN - SCOPUS:85049302699
VL - 138
SP - 1
EP - 7
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -