Growth mechanism for carbon nanotubes in a plasma evaporation process

Takayuki Watanabe; Takahiro Notoya; Takamasa Ishigaki; Hiroyuki Kuwano; Hideki Tanaka; Yusuke Moriyoshi

doi:10.1016/j.tsf.2005.08.289

Growth mechanism for carbon nanotubes in a plasma evaporation process

Takayuki Watanabe, Takahiro Notoya, Takamasa Ishigaki, Hiroyuki Kuwano, Hideki Tanaka, Yusuke Moriyoshi

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB₆ had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni-Co, Ni-Fe, and Ni-LaB₆ provided more effective activity in the CNT synthesis. Furthermore, the CNT growth mechanism from the vapor mixture of carbon and metals was discussed. Heterogeneous condensation model and carbon-metal molten model were selected as the CNT growth model.

Original language	English
Pages (from-to)	263-267
Number of pages	5
Journal	Thin Solid Films
Volume	506-507
DOIs	https://doi.org/10.1016/j.tsf.2005.08.289
Publication status	Published - May 26 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2005.08.289

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title = "Growth mechanism for carbon nanotubes in a plasma evaporation process",

abstract = "Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB6 had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni-Co, Ni-Fe, and Ni-LaB6 provided more effective activity in the CNT synthesis. Furthermore, the CNT growth mechanism from the vapor mixture of carbon and metals was discussed. Heterogeneous condensation model and carbon-metal molten model were selected as the CNT growth model.",

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T1 - Growth mechanism for carbon nanotubes in a plasma evaporation process

AU - Watanabe, Takayuki

AU - Notoya, Takahiro

AU - Ishigaki, Takamasa

AU - Kuwano, Hiroyuki

AU - Tanaka, Hideki

AU - Moriyoshi, Yusuke

PY - 2006/5/26

Y1 - 2006/5/26

N2 - Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB6 had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni-Co, Ni-Fe, and Ni-LaB6 provided more effective activity in the CNT synthesis. Furthermore, the CNT growth mechanism from the vapor mixture of carbon and metals was discussed. Heterogeneous condensation model and carbon-metal molten model were selected as the CNT growth model.

AB - Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB6 had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni-Co, Ni-Fe, and Ni-LaB6 provided more effective activity in the CNT synthesis. Furthermore, the CNT growth mechanism from the vapor mixture of carbon and metals was discussed. Heterogeneous condensation model and carbon-metal molten model were selected as the CNT growth model.

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SP - 263

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JO - Thin Solid Films

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ER -

Growth mechanism for carbon nanotubes in a plasma evaporation process

Abstract

All Science Journal Classification (ASJC) codes

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