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The Reduction Temperature Effect of Fe-Co/MgO Catalyst on Characteristics of Multi-Walled Carbon Nanotubes
- Authors
- Kim, Paul; Lee, Cheol Jin
- Issue Date
- 9월-2018
- Publisher
- MDPI
- Keywords
- CNT; metal catalyst; reduction temperature; diameter; crystallinity
- Citation
- CATALYSTS, v.8, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSTS
- Volume
- 8
- Number
- 9
- ISSN
- 2073-4344
- 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.
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