Purification and structural annealing of multiwalled carbon nanotubes at graphitization temperatures

R. Andrews; D. Jacques; D. Qian; E. C. Dickey

doi:10.1016/S0008-6223(00)00301-8

Purification and structural annealing of multiwalled carbon nanotubes at graphitization temperatures

R. Andrews
, D. Jacques
, D. Qian
, E. C. Dickey

Producción científica: Article › revisión exhaustiva

436 Citas (Scopus)

Resumen

In this work, we present a systematic study of the effects of graphitization on the structural perfection of multiwalled carbon nanotubes. High purity nanotubes were produced by a low temperature CVD method and subsequently annealed at temperatures between 1600 and 3000°C. The nanotubes were characterized for chemical purity, interlayer spacing, and defect healing. The graphitization procedure was found to remove residual metal catalyst in the nanotubes and reduce the wall defects as reflected in a reduced interlayer spacing between the graphene shells. Graphitization presents a low-cost, commercially viable method of purifying and ordering multiwall carbon nanotubes.

Idioma original	English
Páginas (desde-hasta)	1681-1687
Número de páginas	7
Publicación	Carbon
Volumen	39
N.º	11
DOI	https://doi.org/10.1016/S0008-6223(00)00301-8
Estado	Published - 2001

Nota bibliográfica

Funding Information:
The authors would like to acknowledge the support of Conoco Inc. Technology Center, Ponca City, Oklahoma, who performed the graphitization of the nanotubes. This work was supported by the National Science Foundation MRSEC Advanced Carbon Materials Center (DMR-9809686). The authors would also like to thank E. Harlacher, Visiting Scientist at CAER (1999), for his helpful insights.

Financiación

The authors would like to acknowledge the support of Conoco Inc. Technology Center, Ponca City, Oklahoma, who performed the graphitization of the nanotubes. This work was supported by the National Science Foundation MRSEC Advanced Carbon Materials Center (DMR-9809686). The authors would also like to thank E. Harlacher, Visiting Scientist at CAER (1999), for his helpful insights.

Financiadores	Número del financiador
National Science Foundation MRSEC Advanced Carbon Materials Center	DMR-9809686
ConocoPhillips

ASJC Scopus subject areas

General Chemistry
General Materials Science

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10.1016/S0008-6223(00)00301-8

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abstract = "In this work, we present a systematic study of the effects of graphitization on the structural perfection of multiwalled carbon nanotubes. High purity nanotubes were produced by a low temperature CVD method and subsequently annealed at temperatures between 1600 and 3000°C. The nanotubes were characterized for chemical purity, interlayer spacing, and defect healing. The graphitization procedure was found to remove residual metal catalyst in the nanotubes and reduce the wall defects as reflected in a reduced interlayer spacing between the graphene shells. Graphitization presents a low-cost, commercially viable method of purifying and ordering multiwall carbon nanotubes.",

keywords = "A. Carbon nanotubes, B. Graphitization, C. X-ray diffraction, Transmission electron microscopy (TEM)",

author = "R. Andrews and D. Jacques and D. Qian and Dickey, \{E. C.\}",

note = "Funding Information: The authors would like to acknowledge the support of Conoco Inc. Technology Center, Ponca City, Oklahoma, who performed the graphitization of the nanotubes. This work was supported by the National Science Foundation MRSEC Advanced Carbon Materials Center (DMR-9809686). The authors would also like to thank E. Harlacher, Visiting Scientist at CAER (1999), for his helpful insights.",

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AU - Jacques, D.

AU - Qian, D.

AU - Dickey, E. C.

N1 - Funding Information: The authors would like to acknowledge the support of Conoco Inc. Technology Center, Ponca City, Oklahoma, who performed the graphitization of the nanotubes. This work was supported by the National Science Foundation MRSEC Advanced Carbon Materials Center (DMR-9809686). The authors would also like to thank E. Harlacher, Visiting Scientist at CAER (1999), for his helpful insights.

PY - 2001

Y1 - 2001

N2 - In this work, we present a systematic study of the effects of graphitization on the structural perfection of multiwalled carbon nanotubes. High purity nanotubes were produced by a low temperature CVD method and subsequently annealed at temperatures between 1600 and 3000°C. The nanotubes were characterized for chemical purity, interlayer spacing, and defect healing. The graphitization procedure was found to remove residual metal catalyst in the nanotubes and reduce the wall defects as reflected in a reduced interlayer spacing between the graphene shells. Graphitization presents a low-cost, commercially viable method of purifying and ordering multiwall carbon nanotubes.

AB - In this work, we present a systematic study of the effects of graphitization on the structural perfection of multiwalled carbon nanotubes. High purity nanotubes were produced by a low temperature CVD method and subsequently annealed at temperatures between 1600 and 3000°C. The nanotubes were characterized for chemical purity, interlayer spacing, and defect healing. The graphitization procedure was found to remove residual metal catalyst in the nanotubes and reduce the wall defects as reflected in a reduced interlayer spacing between the graphene shells. Graphitization presents a low-cost, commercially viable method of purifying and ordering multiwall carbon nanotubes.

KW - A. Carbon nanotubes

KW - B. Graphitization

KW - C. X-ray diffraction

KW - Transmission electron microscopy (TEM)

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Purification and structural annealing of multiwalled carbon nanotubes at graphitization temperatures

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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