The reduction temperature effect of Fe–Co/MgO catalyst on characteristics of multi-walled carbon nanotubes

Paul Kim; Cheol Jin Lee

doi:10.3390/catal8090361

The reduction temperature effect of Fe–Co/MgO catalyst on characteristics of multi-walled carbon nanotubes

Paul Kim, Cheol Jin Lee

School of Electrical Engineering

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

6 Citations (Scopus)

Abstract

Diameters and crystallinity of multi-walled carbon nanotubes (MWCNTs) dependent on reduction temperature of the Fe–Co/MgO catalyst were investigated. MWCNTs were synthesized by catalytic chemical vapor depositing and the Fe–Co/MgO catalyst was fabricated by using a sol-gel method. According to Raman analysis, transmission electron microscopy and thermogravimetric analysis, the diameter distribution of MWCNTs was broadened with increasing reduction temperature of the Fe–Co/MgO catalyst and crystallinity was improved. The above results are attributed to an increased size and enhanced crystallinity of metal catalyst particles by increasing reduction temperature.

Original language	English
Article number	361
Journal	Catalysts
Volume	8
Issue number	9
DOIs	https://doi.org/10.3390/catal8090361
Publication status	Published - 2018 Sept

Keywords

CNT
Crystallinity
Diameter
Metal catalyst
Reduction temperature

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

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10.3390/catal8090361

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title = "The reduction temperature effect of Fe–Co/MgO catalyst on characteristics of multi-walled carbon nanotubes",

abstract = "Diameters and crystallinity of multi-walled carbon nanotubes (MWCNTs) dependent on reduction temperature of the Fe–Co/MgO catalyst were investigated. MWCNTs were synthesized by catalytic chemical vapor depositing and the Fe–Co/MgO catalyst was fabricated by using a sol-gel method. According to Raman analysis, transmission electron microscopy and thermogravimetric analysis, the diameter distribution of MWCNTs was broadened with increasing reduction temperature of the Fe–Co/MgO catalyst and crystallinity was improved. The above results are attributed to an increased size and enhanced crystallinity of metal catalyst particles by increasing reduction temperature.",

keywords = "CNT, Crystallinity, Diameter, Metal catalyst, Reduction temperature",

author = "Paul Kim and Lee, {Cheol Jin}",

note = "Funding Information: Acknowledgments: This work was supported by Brain Korea 21 Plus Project through the Ministry of Education in Korea and Korea Basic Science Institute (KBSI). Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",

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AU - Kim, Paul

AU - Lee, Cheol Jin

N1 - Funding Information: Acknowledgments: This work was supported by Brain Korea 21 Plus Project through the Ministry of Education in Korea and Korea Basic Science Institute (KBSI). Publisher Copyright: © 2018 by the authors. Licensee MDPI, Basel, Switzerland.

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N2 - Diameters and crystallinity of multi-walled carbon nanotubes (MWCNTs) dependent on reduction temperature of the Fe–Co/MgO catalyst were investigated. MWCNTs were synthesized by catalytic chemical vapor depositing and the Fe–Co/MgO catalyst was fabricated by using a sol-gel method. According to Raman analysis, transmission electron microscopy and thermogravimetric analysis, the diameter distribution of MWCNTs was broadened with increasing reduction temperature of the Fe–Co/MgO catalyst and crystallinity was improved. The above results are attributed to an increased size and enhanced crystallinity of metal catalyst particles by increasing reduction temperature.

AB - Diameters and crystallinity of multi-walled carbon nanotubes (MWCNTs) dependent on reduction temperature of the Fe–Co/MgO catalyst were investigated. MWCNTs were synthesized by catalytic chemical vapor depositing and the Fe–Co/MgO catalyst was fabricated by using a sol-gel method. According to Raman analysis, transmission electron microscopy and thermogravimetric analysis, the diameter distribution of MWCNTs was broadened with increasing reduction temperature of the Fe–Co/MgO catalyst and crystallinity was improved. The above results are attributed to an increased size and enhanced crystallinity of metal catalyst particles by increasing reduction temperature.

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KW - Crystallinity

KW - Diameter

KW - Metal catalyst

KW - Reduction temperature

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ER -

The reduction temperature effect of Fe–Co/MgO catalyst on characteristics of multi-walled carbon nanotubes

Abstract

Keywords

ASJC Scopus subject areas

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