Effects of catalyst on the super-growth of multi-walled carbon nanotubes

Hyeongkeun Kim; Kyoung Yong Chun; Jaeboong Choi; Youngjin Kim; Seunghyun Baik

doi:10.1166/jnn.2010.2321

Effects of catalyst on the super-growth of multi-walled carbon nanotubes

Hyeongkeun Kim
, Kyoung Yong Chun
, Jaeboong Choi
, Youngjin Kim
, Seunghyun Baik

Department of Mechanical Engineering

Sungkyunkwan University

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

16 Scopus citations

Abstract

We investigated the effects of catalyst (Fe)/buffer layer (Al ₂O ₃) on the vertical growth multiwalled carbon nanotubes (CNTs) synthesized by thermal chemical vapor deposition. The Fe was deposited onto Al ₂O ₃/SiO ₂/Si wafer by using e-beam evaporator. Ethylene was used as a feeding gas while argon was used as a carrier gas. Hydrogen was also introduced. The catalyst layers were optimized to control the length, diameter, purity, and alignment of CNTs. For the optimized conditions we produced vertically aligned CNTs of about 1 cm in length during 10 h. The effects of catalysts on nanotube characteristics were systematically analyzed using SEM, TEM, and Raman measurement.

Original language	English
Pages (from-to)	3362-3365
Number of pages	4
Journal	Journal of Nanoscience and Nanotechnology
Volume	10
Issue number	5
DOIs	https://doi.org/10.1166/jnn.2010.2321
State	Published - May 2010

Keywords

Multi-Walled carbon nanotubes
Sandwich-Like catalyst
Thermal chemical vapor deposition
Vertically aligned super-growth

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10.1166/jnn.2010.2321

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title = "Effects of catalyst on the super-growth of multi-walled carbon nanotubes",

abstract = "We investigated the effects of catalyst (Fe)/buffer layer (Al 2O 3) on the vertical growth multiwalled carbon nanotubes (CNTs) synthesized by thermal chemical vapor deposition. The Fe was deposited onto Al 2O 3/SiO 2/Si wafer by using e-beam evaporator. Ethylene was used as a feeding gas while argon was used as a carrier gas. Hydrogen was also introduced. The catalyst layers were optimized to control the length, diameter, purity, and alignment of CNTs. For the optimized conditions we produced vertically aligned CNTs of about 1 cm in length during 10 h. The effects of catalysts on nanotube characteristics were systematically analyzed using SEM, TEM, and Raman measurement.",

keywords = "Multi-Walled carbon nanotubes, Sandwich-Like catalyst, Thermal chemical vapor deposition, Vertically aligned super-growth",

author = "Hyeongkeun Kim and Chun, \{Kyoung Yong\} and Jaeboong Choi and Youngjin Kim and Seunghyun Baik",

year = "2010",

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AU - Kim, Hyeongkeun

AU - Chun, Kyoung Yong

AU - Choi, Jaeboong

AU - Kim, Youngjin

AU - Baik, Seunghyun

PY - 2010/5

Y1 - 2010/5

N2 - We investigated the effects of catalyst (Fe)/buffer layer (Al 2O 3) on the vertical growth multiwalled carbon nanotubes (CNTs) synthesized by thermal chemical vapor deposition. The Fe was deposited onto Al 2O 3/SiO 2/Si wafer by using e-beam evaporator. Ethylene was used as a feeding gas while argon was used as a carrier gas. Hydrogen was also introduced. The catalyst layers were optimized to control the length, diameter, purity, and alignment of CNTs. For the optimized conditions we produced vertically aligned CNTs of about 1 cm in length during 10 h. The effects of catalysts on nanotube characteristics were systematically analyzed using SEM, TEM, and Raman measurement.

AB - We investigated the effects of catalyst (Fe)/buffer layer (Al 2O 3) on the vertical growth multiwalled carbon nanotubes (CNTs) synthesized by thermal chemical vapor deposition. The Fe was deposited onto Al 2O 3/SiO 2/Si wafer by using e-beam evaporator. Ethylene was used as a feeding gas while argon was used as a carrier gas. Hydrogen was also introduced. The catalyst layers were optimized to control the length, diameter, purity, and alignment of CNTs. For the optimized conditions we produced vertically aligned CNTs of about 1 cm in length during 10 h. The effects of catalysts on nanotube characteristics were systematically analyzed using SEM, TEM, and Raman measurement.

KW - Multi-Walled carbon nanotubes

KW - Sandwich-Like catalyst

KW - Thermal chemical vapor deposition

KW - Vertically aligned super-growth

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DO - 10.1166/jnn.2010.2321

M3 - Article

AN - SCOPUS:77954992558

SN - 1533-4880

VL - 10

SP - 3362

EP - 3365

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

IS - 5

ER -

Effects of catalyst on the super-growth of multi-walled carbon nanotubes

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Keywords

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