The beneficial effect of CO2 in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH4 over Ni catalysts

Steven Corthals; Jasper Van Noyen; Jan Geboers; Tom André Jos Vosch; Duoduo Liang; Xiaoxing Ke; Johan Hofkens; Gustaaf Van Tendeloo; Pierre Jacobs; Bert Sels

doi:10.1016/j.carbon.2011.08.047

The beneficial effect of CO₂ in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH₄ over Ni catalysts

Steven Corthals, Jasper Van Noyen, Jan Geboers, Tom André Jos Vosch, Duoduo Liang, Xiaoxing Ke, Johan Hofkens, Gustaaf Van Tendeloo, Pierre Jacobs, Bert Sels

Department of Chemistry

28 Citations (Scopus)

Abstract

A low temperature chemical vapor deposition method is described for converting CH₄ into high-quality carbon nanofibers (CNFs) using a Ni catalyst supported on either spinel or perovskite oxides in the presence of CO₂. The addition of CO₂ has a significant influence on CNF purity and stability, while the CNF diameter distribution is significantly narrowed. Ultimately, the addition of CO₂ changes the CNF structure from fishbone fibers to thin multiwalled carbon nanotubes. A new "in situ" cooling principle taking into account dry reforming chemistry and thermodynamics is introduced to account for the structural effects of CO ₂.

Original language	English
Journal	Carbon
Volume	50
Issue number	2
Pages (from-to)	372-384
Number of pages	13
ISSN	0008-6223
DOIs	https://doi.org/10.1016/j.carbon.2011.08.047
Publication status	Published - Feb 2012

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Corthals, S., Van Noyen, J., Geboers, J., Vosch, T. A. J., Liang, D., Ke, X., Hofkens, J., Van Tendeloo, G., Jacobs, P., & Sels, B. (2012). The beneficial effect of CO₂ in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH₄ over Ni catalysts. Carbon, 50(2), 372-384. https://doi.org/10.1016/j.carbon.2011.08.047

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title = "The beneficial effect of CO2 in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH4 over Ni catalysts",

abstract = "A low temperature chemical vapor deposition method is described for converting CH4 into high-quality carbon nanofibers (CNFs) using a Ni catalyst supported on either spinel or perovskite oxides in the presence of CO2. The addition of CO2 has a significant influence on CNF purity and stability, while the CNF diameter distribution is significantly narrowed. Ultimately, the addition of CO2 changes the CNF structure from fishbone fibers to thin multiwalled carbon nanotubes. A new {"}in situ{"} cooling principle taking into account dry reforming chemistry and thermodynamics is introduced to account for the structural effects of CO 2.",

author = "Steven Corthals and {Van Noyen}, Jasper and Jan Geboers and Vosch, {Tom Andr{\'e} Jos} and Duoduo Liang and Xiaoxing Ke and Johan Hofkens and {Van Tendeloo}, Gustaaf and Pierre Jacobs and Bert Sels",

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doi = "10.1016/j.carbon.2011.08.047",

language = "English",

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T1 - The beneficial effect of CO2 in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH4 over Ni catalysts

AU - Corthals, Steven

AU - Van Noyen, Jasper

AU - Geboers, Jan

AU - Vosch, Tom André Jos

AU - Liang, Duoduo

AU - Ke, Xiaoxing

AU - Hofkens, Johan

AU - Van Tendeloo, Gustaaf

AU - Jacobs, Pierre

AU - Sels, Bert

PY - 2012/2

Y1 - 2012/2

N2 - A low temperature chemical vapor deposition method is described for converting CH4 into high-quality carbon nanofibers (CNFs) using a Ni catalyst supported on either spinel or perovskite oxides in the presence of CO2. The addition of CO2 has a significant influence on CNF purity and stability, while the CNF diameter distribution is significantly narrowed. Ultimately, the addition of CO2 changes the CNF structure from fishbone fibers to thin multiwalled carbon nanotubes. A new "in situ" cooling principle taking into account dry reforming chemistry and thermodynamics is introduced to account for the structural effects of CO 2.

AB - A low temperature chemical vapor deposition method is described for converting CH4 into high-quality carbon nanofibers (CNFs) using a Ni catalyst supported on either spinel or perovskite oxides in the presence of CO2. The addition of CO2 has a significant influence on CNF purity and stability, while the CNF diameter distribution is significantly narrowed. Ultimately, the addition of CO2 changes the CNF structure from fishbone fibers to thin multiwalled carbon nanotubes. A new "in situ" cooling principle taking into account dry reforming chemistry and thermodynamics is introduced to account for the structural effects of CO 2.

U2 - 10.1016/j.carbon.2011.08.047

DO - 10.1016/j.carbon.2011.08.047

M3 - Journal article

SN - 0008-6223

VL - 50

SP - 372

EP - 384

JO - Carbon

JF - Carbon

IS - 2

ER -

The beneficial effect of CO2 in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH4 over Ni catalysts

Abstract

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The beneficial effect of CO₂ in the low temperature synthesis of high quality carbon nanofibers and thin multiwalled carbon nanotubes from CH₄ over Ni catalysts