Preparation of carbon nanotubes over cobalt-containing catalysts via catalytic decomposition of methane

Abstract

Decomposition of methane into carbon nanotubes over CoO catalysts supported on various catalyst supports at 550 °C and 700 °C was investigated. The effect of catalyst promoters on the supported CoO catalysts at 700 °C was also examined. Electron microscope observations showed that among the various catalyst supports tested, alumina was found to be the most appropriate for CoO that CoO/Al 2 O 3 catalyst grew carbon nanotubes with significant hollow cores. Experimental results further revealed that introducing FeO into CoO/Al 2 O 3 catalyst resulted in the formation of carbon nanotubes with thin wall structure. Introducing MoO into CoO/Al 2 O 3 catalyst increased the carbon capacity and the selectivity of CoO/Al 2 O 3 catalyst in growing better quality carbon nanotubes. © 2006 Elsevier B.V. All rights reserved.

Citation

Chai, S. P., Zein, S. H. S., & Mohamed, A. R. (2006). Preparation of carbon nanotubes over cobalt-containing catalysts via catalytic decomposition of methane. Chemical Physics Letters, 426(4-6), 345-350. https://doi.org/10.1016/j.cplett.2006.05.026

• Journal Article Type: Article
• Online Publication Date: May 12, 2006
• Publication Date: Aug 4, 2006
• Deposit Date: Jul 7, 2020
• Journal: Chemical Physics Letters
• Print ISSN: 0009-2614
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 426
• Issue: 4-6
• Pages: 345-350
• DOI: https://doi.org/10.1016/j.cplett.2006.05.026
• Public URL: https://hull-repository.worktribe.com/output/550026
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S0009261406006713?via%3Dihub