Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction

Maoshuai He; Bilu Liu; Alexander I. Chernov; Elena D.  Obraztsova; Inkeri Kauppi; Hua Jiang; Filippo Cavalca; Thomas Willum Hansen; Jakob Birkedal Wagner; Albert. G. Nasibulin; Esko I. Kauppinen; Juha Linnekoski; Marita  Niemelä; Juha Lehtonen

doi:10.1021/cm300308k

Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction

Maoshuai He, Bilu Liu, Alexander I. Chernov, Elena D. Obraztsova, Inkeri Kauppi, Hua Jiang, Filippo Cavalca, Thomas Willum Hansen, Jakob Birkedal Wagner, Albert. G. Nasibulin, Esko I. Kauppinen, Juha Linnekoski, Marita Niemelä, Juha Lehtonen

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Abstract

Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using nanobeam electron diffraction. The results reveal that the growth yields nearly 90% semiconducting tubes, 45% of which are of the (6,5) type. The growth mechanisms as well as the roles of different components in the catalyst were studied in situ using environmental transmission electron microscopy and infrared spectroscopy. On the basis of the understanding of carbon nanotube growth mechanisms, an MgO-supported FeCu catalyst was prepared by impregnation, showing similar catalytic performance as the atomic layer deposition-prepared catalyst, yielding single-walled carbon nanotubes with a similar narrow chirality distribution.

Original language	English
Journal	Chemistry of Materials
Volume	24
Issue number	10
Pages (from-to)	1796–1801
ISSN	0897-4756
DOIs	https://doi.org/10.1021/cm300308k
Publication status	Published - 2012

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He, M., Liu, B., Chernov, A. I., Obraztsova, E. D., Kauppi, I., Jiang, H., Cavalca, F., Hansen, T. W., Wagner, J. B., Nasibulin, A. G., Kauppinen, E. I., Linnekoski, J., Niemelä, M., & Lehtonen, J. (2012). Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction. Chemistry of Materials, 24(10), 1796–1801. https://doi.org/10.1021/cm300308k

@article{af80ba6a7bfb47f28ca8f2194e7cb206,

title = "Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction",

abstract = "Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using nanobeam electron diffraction. The results reveal that the growth yields nearly 90% semiconducting tubes, 45% of which are of the (6,5) type. The growth mechanisms as well as the roles of different components in the catalyst were studied in situ using environmental transmission electron microscopy and infrared spectroscopy. On the basis of the understanding of carbon nanotube growth mechanisms, an MgO-supported FeCu catalyst was prepared by impregnation, showing similar catalytic performance as the atomic layer deposition-prepared catalyst, yielding single-walled carbon nanotubes with a similar narrow chirality distribution.",

author = "Maoshuai He and Bilu Liu and Chernov, {Alexander I.} and Obraztsova, {Elena D.} and Inkeri Kauppi and Hua Jiang and Filippo Cavalca and Hansen, {Thomas Willum} and Wagner, {Jakob Birkedal} and Nasibulin, {Albert. G.} and Kauppinen, {Esko I.} and Juha Linnekoski and Marita Niemel{\"a} and Juha Lehtonen",

year = "2012",

doi = "10.1021/cm300308k",

language = "English",

volume = "24",

pages = "1796–1801",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "10",

}

He, M, Liu, B, Chernov, AI, Obraztsova, ED, Kauppi, I, Jiang, H, Cavalca, F, Hansen, TW , Wagner, JB, Nasibulin, AG, Kauppinen, EI, Linnekoski, J, Niemelä, M & Lehtonen, J 2012, 'Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction', Chemistry of Materials, vol. 24, no. 10, pp. 1796–1801. https://doi.org/10.1021/cm300308k

TY - JOUR

T1 - Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction

AU - He, Maoshuai

AU - Liu, Bilu

AU - Chernov, Alexander I.

AU - Obraztsova, Elena D.

AU - Kauppi, Inkeri

AU - Jiang, Hua

AU - Cavalca, Filippo

AU - Hansen, Thomas Willum

AU - Wagner, Jakob Birkedal

AU - Nasibulin, Albert. G.

AU - Kauppinen, Esko I.

AU - Linnekoski, Juha

AU - Niemelä, Marita

AU - Lehtonen, Juha

PY - 2012

Y1 - 2012

N2 - Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using nanobeam electron diffraction. The results reveal that the growth yields nearly 90% semiconducting tubes, 45% of which are of the (6,5) type. The growth mechanisms as well as the roles of different components in the catalyst were studied in situ using environmental transmission electron microscopy and infrared spectroscopy. On the basis of the understanding of carbon nanotube growth mechanisms, an MgO-supported FeCu catalyst was prepared by impregnation, showing similar catalytic performance as the atomic layer deposition-prepared catalyst, yielding single-walled carbon nanotubes with a similar narrow chirality distribution.

AB - Chiralities of single-walled carbon nanotubes grown on an atomic layer deposition prepared bimetallic FeCu/MgO catalyst were evaluated quantitatively using nanobeam electron diffraction. The results reveal that the growth yields nearly 90% semiconducting tubes, 45% of which are of the (6,5) type. The growth mechanisms as well as the roles of different components in the catalyst were studied in situ using environmental transmission electron microscopy and infrared spectroscopy. On the basis of the understanding of carbon nanotube growth mechanisms, an MgO-supported FeCu catalyst was prepared by impregnation, showing similar catalytic performance as the atomic layer deposition-prepared catalyst, yielding single-walled carbon nanotubes with a similar narrow chirality distribution.

U2 - 10.1021/cm300308k

DO - 10.1021/cm300308k

M3 - Journal article

SN - 0897-4756

VL - 24

SP - 1796

EP - 1801

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 10

ER -

Growth Mechanism of Single-Walled Carbon Nanotubes on Iron–Copper Catalyst and Chirality Studies by Electron Diffraction

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